Name _________________________________ Date__________ Period ______
Genetics Re...
WHICH OF THE FOLLOWING IS TRUE of MENDELIAN INHERITANCE?
A. If a dominant allele is present, the recessive allele won...
_______________________ An organism that always produces offspring identical to itself if self
...
What is the genotype of a PURE PURPLE FLOWERED plant ? = ________
What is the genotype of a PURE WHITE FLOWERED plant? = ...
What is the probability an offspring will show the DOMINANT TRAIT (TALLNESS)?
________________________%
What is the proba...
Make a cross between TWO HETEROZYGOUS BLACK guinea pigs.
Genotypes of Parents: __________ X __________
POSSIBLE OF...
POSSIBLE OFFSPRING GENOTYPES ________________________________________
POSSIBLE OFFSPRING PHENOTYPES ...
SEE A PATTERN FOR HETEROZYGOUS (F1) MONOHYBRID CROSSES:
If you cross 2 parent plants that are BOTH HETEROZYGOUS for a tra...
SS = ______________ Ss = _______________ ss = ________________
* * * * * * * * ...
POSSIBLE OFFSPRING GENOTYPES ________________________________________
POSSIBLE OFFSPRING PHENOTYPES ____...
C. codominance
If the red and yellow alleles in the mystery jungle plant above showed CODOMINANCE
instead, what might you...
________ _________ _________ _________
What is the probability the offspring will have:
A type blood _____% B typ...
JERRY SPRINGER GENETICS:
Wanda tells Jerry Springer that she thinks either Ralph or Fred could be the father of her
baby....
IN PEAS:
R = round T= tall Y = yellow peas P =
purple flowers
r = wrinkled t = ...
Parent's genotypes __________ X __________
Possible gametes ____ ____ ____ ____ ____ ____ ____ ____
Ho...
Cross a HETEROZGOUS TALL, HETEROZYGOUS ROUND pea with a PURE
SHORT, WRINKLED pea.
Parent's genotypes __________ X ________...
How many out of 16 will be:
_______ TALL w/ YELLOW PEAS
_______ TALL w/ GREEN PEAS
_______ SHORT w/ YELLOW PEAS
_______ SH...
USE THIS PATTERN TO TELL THE POSSIBLE OFFSPRING OF A
HETEROZYGOUS DIHYBRID CROSS WITHOUT USING A PUNNETT
SQUARE:
...
What genotype does a baby need to be a blue eyed boy and get the $1 million?
_______________
Use a Punnett square to show...
of 19

Name Date_ Period _

Published on: Mar 3, 2016
Source: www.slideshare.net


Transcripts - Name Date_ Period _

  • 1. Name _________________________________ Date__________ Period ______ Genetics Review MULTIPLE CHOICE: Circle the answer that best completes the sentence. The Austrian monk whose experiments with pea plants were the beginning of our understanding of genetics was _____________________. A. Albert Einstein B. Albus Dumbledore C. Alfred Nobel D. Gregor Mendel The different alternatives or choices for a gene (like blue, green, or brown eyes) are called _____________. A. generations B. traits C. tetrads D. alleles Crossing organisms from the F1 generation produces the _____ generation. A. P2 B. F2 C. P1 D. None of these-you can’t cross F1 organisms with each other! Crossing organisms from the P1 generation produces the _____ generation. E. P2 F. F1 G. F2 H. None of these-you can’t cross P1 organisms with each other! Mendel’s “factors” are now called ___________________. A. gametes B. genes C. cells D. zygotes Self-pollination produces seeds with genetic information from _______ parent plant(s). A. ONE B. TWO A. THREE What pattern did Mendel see when crossing pure TALL with pure SHORT pea plants? A. ALL the F1 offspring were short, but the F2 generation were all tall. B. ALL the F1 offspring were tall, but the F2 generation were all short. C. ALL the F1 offspring were short, but 50% the F2 generation were all tall and 50% were short. D. ALL the F1 offspring were tall, but 25% the F2 generation were short and 75% were tall. 1
  • 2. WHICH OF THE FOLLOWING IS TRUE of MENDELIAN INHERITANCE? A. If a dominant allele is present, the recessive allele won’t be seen. B. If a recessive allele is present, the dominant allele won’t be seen. C. Both recessive and dominant alleles show if present Pollen is produced by the _________________ part of the flower. A. female B. male * * * * * * * * * * * * * * * TRUE OR FALSE Circle T if the statement is TRUE. Circle F if the statement is FALSE. If false, make corrections to the underlined words to make the statement true. T F Dominant alleles are represented by a lower case letter. T F Mendel’s Law of Fertilization explains why alleles end up in different gametes following meiosis. * * * * * * * * * * * * * * * MATCH THE WORD FROM THE WORD BANK WITH ITS DEFINITION: GENETICS HEREDITY TRAIT PURE-BREEDING DOMINANT RECESSIVE ALLELE FERTILIZATION _______________________ A characteristic that can be observed such as hair color, seed shape, flower color, etc _______________________ The joining of a sperm and egg to make a zygote _______________________ A gene choice that MASKS ANOTHER choice for a trait _______________________ A gene choice that IS MASKED BY ANOTHER choice for a trait _______________________ the branch of biology that studies how characteristics are transmitted from parent to offspring _______________________ the passing of characteristics from parent to offspring _______________________ An alternative choice for a gene (such as brown, green, or blue eyes) 2
  • 3. _______________________ An organism that always produces offspring identical to itself if self pollinated * * * * * * * * * * * * * * PUNNETT SQUARE PRACTICE Use a Punnett Square to show the possible offspring from the crosses given and answer the questions: IN PEAS: R = round T= tall Y = yellow peas P = purple flowers r=wrinkled t = short y = green peas p = white flowers MAKING MONOHYBRID CROSSES: What is the genotype of a HOMOZYGOUS YELLOW SEED plant? ______________________ What is the genotype of A HOMOZYGOUS GREEN SEED plant? ______________________ What is the genotype of a HETEROZYGOUS YELLOW plant? ______________________ Make a cross between a PURE YELLOW SEED parent and a PURE GREEN SEED parent. Genotypes of Parents: __________ X __________ POSSIBLE OFFSPRING GENOTYPES ________________________________________ POSSIBLE OFFSPRING PHENOTYPES ________________________________________ What is the probability an offspring will show the DOMINANT TRAIT (YELLOW SEEDS)? _________% What is the probability an offspring will show the RECESSIVE TRAIT (GREEN SEEDS)? ___________% * * * * * * * * * * * * * * 3
  • 4. What is the genotype of a PURE PURPLE FLOWERED plant ? = ________ What is the genotype of a PURE WHITE FLOWERED plant? = _________ What is the genotype of a HYBRID PURPLE FLOWERED plant? = ________ Make a cross between a HOMOZYGOUS PURPLE FLOWERED plant and a HOMOZYGOUS WHITE FLOWERED plant. Genotypes of Parents: __________ X __________ POSSIBLE OFFSPRING GENOTYPES ________________________________________ POSSIBLE OFFSPRING PHENOTYPES ________________________________________ What is the probability an offspring will show the DOMINANT TRAIT (PURPLE FLOWERS)? _____________________________% What is the probability an offspring will show the RECESSIVE TRAIT (WHITE FLOWERS)? ____________________________% * * * * * * * * * * * * * * WHAT IS THE GENOTYPE OF A HOMOZYGOUS TALL plant? ________________ WHAT IS THE GENOTYPE OF A PURE SHORT plant? ______________________ Make a cross between a HOMOZYGOUS TALL plant and a PURE SHORT plant. Genotypes of Parents: __________ X __________ POSSIBLE OFFSPRING GENOTYPES ________________________________________ POSSIBLE OFFSPRING PHENOTYPES ________________________________________ 4
  • 5. What is the probability an offspring will show the DOMINANT TRAIT (TALLNESS)? ________________________% What is the probability an offspring will show the RECESSIVE TRAIT (SHORTNESS)? _______________________% * * * * * * * * * * * * * * SEE A PATTERN FOR HOMOZYGOUS (P1) MONOHYBRID CROSSES: If you cross plants that are PURE DOMINANT for a trait with plants that are PURE RECESSIVE for that trait, ________ % of the offspring will show the DOMINANT trait and the ___________________ trait will not show at all. USE THE PATTERN ABOVE TO MAKE PREDICTION ABOUT A CROSS If you cross a HOMOZYGOUS ROUND SEED plant with a PURE WRINKLED SEED plant 100% will look __________________ 0% will look ____________________ The offspring will have a 100% probability of having the ______ genotype. * * * * * * * * * * * * * * MAKE SOME HETEROZYGOUS MONOHYBRID CROSSES A black coat (B) is DOMINANT in guinea pigs. A brown coat (b) is RECESSIVE. What is the genotype of a HOMOZYGOUS BLACK guinea pig? = _______ What is the GENOTYPE of a HETEROZYGOUS BLACK guinea pig? =_________ What is the GENOTYPE of a brown guinea pig? =__________ 5
  • 6. Make a cross between TWO HETEROZYGOUS BLACK guinea pigs. Genotypes of Parents: __________ X __________ POSSIBLE OFFSPRING GENOTYPES ________________________________________ POSSIBLE OFFSPRING PHENOTYPES ________________________________________ What is the probability that a baby will be black? _________ % What is the probability that a baby will be brown? _________% What is the probability the baby will be a HYBRID? ________% What is the probability the baby will be HOMOZYGOUS DOMINANT ? _________% What is the probability the baby will be HOMOZYGOUS RECESSIVE? ___________% * * * * * * * * * * * * * * Purple fur (P) is DOMINANT in monsters. Yellow fur (p) is RECESSIVE. What is the genotype of a PURE PURPLE monster? ________ What is the GENOTYPE of a HETEROZYGOUS purple monster? _____ What is the GENOTYPE of a YELLOW monster? ________ Make a cross between TWO HETEROZYGOUS PURPLE MONSTERS. Genotypes of Parents: __________ X __________ 6
  • 7. POSSIBLE OFFSPRING GENOTYPES ________________________________________ POSSIBLE OFFSPRING PHENOTYPES ________________________________________ What is the probability that a baby will be purple? __________% What is the probability that a baby will be yellow? __________% What is the probability the baby will be a heterozygous? _______% What is the probability the baby will be HOMOZYGOUS DOMINANT ? _________% What is the probability the baby will be HOMOZYGOUS RECESSIVE? ___________% * * * * * * * * * * * * * * Tallness (T) is DOMINANT in pea plants. Shortness (t) is RECESSIVE. What is the GENOTYPE of a HYBRID TALL pea plant? _______ What is the GENOTYPE of a SHORT pea plant? ________ Make a cross between two HYBRID TALL pea plants. Genotypes of Parents: __________ X __________ POSSIBLE OFFSPRING GENOTYPES ________________________________________ POSSIBLE OFFSPRING PHENOTYPES ________________________________________ What is the probability that an offspring plant will be tall ? __________% What is the probability that an offspring plant will be short? __________% What is the probability that an offspring plant will be a HYBRID? ________% What is the probability that an offspring plant will be HOMOZYGOUS DOMINANT? ________% What is the probability that an offspring plant will be HOMOZYGOUS RECESSIVE? __________% * * * * * * * * * * * * * * 7
  • 8. SEE A PATTERN FOR HETEROZYGOUS (F1) MONOHYBRID CROSSES: If you cross 2 parent plants that are BOTH HETEROZYGOUS for a trait the offspring will show a ____ : ____ phenotypic ratio. ________ % of the offspring will show the DOMINANT trait and ________ % of the offspring will show the RECESSIVE trait. USE DOMINANT OR RECESSIVE TO FILL IN THE BLANKS BELOW: ¼ of the offspring will have two __________________ alleles, ½ will be hybrids with one _______________ and one _______________ allele, and ¼ will have two _________________ alleles. USE THE PATTERN ABOVE TO MAKE PREDICTION ABOUT A CROSS If you cross two HETEROZYGOUS ROUND SEED plants 75% will look __________________ 25% will look __________________ The probability is: ¼ will have the genotype ______ ½ will have the genotype _____ ¼ will have the genotype _____ * * * * * * * * * * * * * * Scientists have been investigating the genetic make up of the residents in Bikini Bottom. Complete the following questions about these inhabitants. For each genotype below, indicate whether it is HETEROZYGOUS (HE) or HOMOZYGOUS (HO). TT _______ Bb ________ DD _______ tt ________ Ff _______ Dd _______ ff _________ bb ________ BB _______ FF ______ Determine the PHENOTYPE for each genotype given. IN SPONGE PEOPLE the allele for YELLOW BODY COLOR (Y) is DOMINANT to BLUE (y). YY = ____________ Yy = _____________ yy = _______________ IN SPONGEPEOPLE the allele for SQUARE SHAPE (S) is dominant to ROUND (s). 8
  • 9. SS = ______________ Ss = _______________ ss = ________________ * * * * * * * * * * * * * * * SpongeBob SquarePants recently met SpongeSuzie RoundPants at a dance. SpongeBob is HETEROZYGOUS for his square pants, but Suzie is ROUND. Create a Punnett square to show the possibilities that could result if SpongeBob and SpongeSuzie had children. Genotypes of Parents: __________ X __________ What is SpongBob’s genotype? _____________ What is SpongeSuzie’s genotype? ___________ What are the chances a child will have a square shape? ________ out of 4 OR _______% What are the chances a child will have a round shape? ________ out of 4 OR _______% * * * * * * * * * * * * * * In SQUID PEOPLE the allele for LIGHT BLUE SKIN (B) is DOMINANT over the GREEN (b) allele. Everyone in SquidWard’s family has light blue skin. His family brags that they are a “purebred” line. He recently married a nice girl with light green skin, which is recessive. Create a Punnett square to show the possible offspring from this match. Genotypes of Parents: __________ X __________ 9
  • 10. POSSIBLE OFFSPRING GENOTYPES ________________________________________ POSSIBLE OFFSPRING PHENOTYPES ________________________________________ What are the chances of a child with green skin? ______% Would SquidWard’s children still be considered “purebreds”? YES NO EXPLAIN WHY or WHY NOT. _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ * * * * * * * * * * * * * * INCOMPLETE DOMINANCE: In Four O’clock plants RED FLOWERS (R) are INCOMPLETELY dominant over white (r) flowers. Heterozygous plants show a blended intermediate phenotype of PINK flowers. MAKE A CROSS WITH 2 HETEROZYGOUS FOUR O’CLOCK PLANTS. Genotypes of Parents: __________ X __________ Genotypes___________________________ Genotypic Ratio ______________________ Phenotypes __________________________ Phenotypic Ratios _____________________ IF the red allele in Four-o’clocks WAS COMPLETELY DOMINANT over the white allele, what would the phenotype be for a plant with Rr genotype? ____________________ * * * * * * * * * * * * * * * You are exploring the jungle and find a new species of plant. Some of the plants have red flowers and some have yellow flowers. You cross a red flowering plant with a yellow flowering plant and all the offspring have orange flowers. You might assume that the alleles for flower color in this plant show ____________________. A. complete dominance B. incomplete dominance 10
  • 11. C. codominance If the red and yellow alleles in the mystery jungle plant above showed CODOMINANCE instead, what might you expect a plant with one red allele and one yellow allele to look like? A. It would have all red flowers B. It would have all blue flowers C. It would have red and yellow flowers together on one plant D. It wouldn’t make any flowers because it is a mutant. BLOOD TYPES: In the ABO blood type system the A and B alleles are dominant to O allele, and A and B are codominant to each other. Make a cross between an AO mom and an BO dad. What are the possible genotypes of the offspring? ________ _________ _________ _________ What is the probability the offspring will have: A type blood ____% B type blood _____% O type blood _____% AB type blood _______% * * * * * * * * * * * * * * * Make a cross between an AO mom and an BB dad. What are the possible genotypes of the offspring? 11
  • 12. ________ _________ _________ _________ What is the probability the offspring will have: A type blood _____% B type blood ______% O type blood _____% AB type blood ______% * * * * * * * * * * * * * * * Make a cross between an AA mom and an OO dad. What are the possible genotypes of the offspring? ________ _________ _________ _________ What is the probability the offspring will have: A type blood ____% B type blood _____% O type blood _____% AB type blood ______% * * * * * * * * * * * * * * * You are working in the Emergency room and a bleeding patient with type B blood is brought in. You need to give him blood, but the hospital is all out of type B. Circle ALL the types of blood could you safely give him instead. A AB O EXPLAIN your choices. ___________________________________________________________ ___________________________________________________________ What if the bleeding patient had type AB blood and the hospital was out of AB blood. Circle ALL the types of blood could you safely give him. A B O EXPLAIN your choices. ___________________________________________________________ ___________________________________________________________ 12
  • 13. JERRY SPRINGER GENETICS: Wanda tells Jerry Springer that she thinks either Ralph or Fred could be the father of her baby. Wanda’s genotype is AO. Wanda’s baby has type O blood. Ralph’s genotype is AB. Fred’s genotype is BO. Make two crosses to show who could be the father of Wanda’s baby. Ralph X Wanda Fred X Wanda Is it possible for Ralph to be the baby’s father? YES NO Is it possible for Fred to be the baby’s father? YES NO Does this absolutely PROVE that Fred IS the baby’s father? YES NO EXPLAIN YOUR ANSWER. ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ IF Wanda’s baby has type O blood, what are the possible genotypes for men who COULD BE the father of Wanda’s baby? ______________________________________________ * * * * * * * * * * * * * * * 13
  • 14. IN PEAS: R = round T= tall Y = yellow peas P = purple flowers r = wrinkled t = short y = green peas p = white flowers MAKING HOMOZYGOUS DIHYBRID CROSSES: Cross a HOMOZYGOUS TALL, HOMOZYGOUS ROUND pea with a SHORT, WRINKLED pea. Parent's genotypes __________ X __________ Possible gametes ____ ____ ____ ____ ____ ____ ____ ____ How many out of 16 will be: _______ TALL & ROUND _______ TALL & WRINKLED _______ SHORT & ROUND _______ SHORT & WRINKLED * * * * * * * * * * * * * * * Cross a HOMOZYGOUS TALL, HOMOZYGOUS YELLOW pea with a PURE SHORT, GREEN pea. 14
  • 15. Parent's genotypes __________ X __________ Possible gametes ____ ____ ____ ____ ____ ____ ____ ____ How many out of 16 will be: _______ TALL w/ YELLOW PEAS _______ TALL w/GREEN PEAS _______ SHORT w/ YELLOW PEAS _______ SHORT w/ GREEN PEAS * * * * * * * * * * * * * * * SEE A PATTERN FOR HOMOZYGOUS (P1) DIHYBRID CROSSES: If you cross plants that are PURE DOMINANT for TWO TRAITS with plants that are PURE RECESSIVE for TWO TRAITS, ________ % of the offspring will look DOMINANT for BOTH traits and the ________________ traits will not show at all. * * * * * * * * * * * * * * * 15
  • 16. Cross a HETEROZGOUS TALL, HETEROZYGOUS ROUND pea with a PURE SHORT, WRINKLED pea. Parent's genotypes __________ X __________ Possible gametes ____ ____ ____ ____ ____ ____ ____ ____ How many out of 16 will be: _______ TALL ROUND _______ TALL WRINKLED _______ SHORT ROUND _______ SHORT WRINKLED * * * * * * * * * * * * * * * Cross a HYBRID TALL, HYBRID YELLOW pea with a HETEROZYGOUS TALL, HETEROZYGOUS YELLOW pea. Parent's genotypes __________ X __________ Possible gametes ____ ____ ____ ____ ____ ____ ____ ____ 16
  • 17. How many out of 16 will be: _______ TALL w/ YELLOW PEAS _______ TALL w/ GREEN PEAS _______ SHORT w/ YELLOW PEAS _______ SHORT w/ GREEN PEAS * * * * * * * * * * * * * * * FIND THE PATTERN FOR HETEROZYGOUS (F1) DIHYBRID CROSSES: If you cross 2 parent plants that are BOTH HETEROZYGOUS for TWO TRAITS, the offspring will show a ____ : ____ : ____ : ____ phenotypic pattern. Fill in the blanks below with: DOMINANT or RECESSIVE 9/16 of the offspring will show both ___________________ traits. 3/16 will look _________________ for trait 1 and _________________ for trait 2. 3/16 will look __________________ for trait 1 and _________________ for trait 2. 1/16 will look ____________________ for both traits. 17
  • 18. USE THIS PATTERN TO TELL THE POSSIBLE OFFSPRING OF A HETEROZYGOUS DIHYBRID CROSS WITHOUT USING A PUNNETT SQUARE: R = round T= tall r=wrinkled t = short RrTt X RrTt 9/16 will look ______________________ and _____________________ 3/16 will look ______________________ and _____________________ 3/16 will look ______________________ and _____________________ 1/16 will look ______________________ and _____________________ P = purple T= tall p= white t = short PpTt X PpTt 9/16 will look ______________________ and _____________________ 3/16 will look ______________________ and _____________________ 3/16 will look ______________________ and _____________________ 1/16 will look ______________________ and _____________________ Rhett and Scarlett are expecting a baby. Rhett’s rich uncle has promised them $1 million if their baby is a blue eyed boy that can carry on the family name. Brown eyes (B) are dominant over blue eyes (b). Rhett has brown eyes, while Scarlett has blue eyes. Fill in the Punnett square with Rhett and Scarlett’s possible gametes. Rhett’s Genotype: BbXy Scarlett’s Genotype: bbXX Possible gametes: ______ _____ _____ _____ ______ _____ _____ _____ 18
  • 19. What genotype does a baby need to be a blue eyed boy and get the $1 million? _______________ Use a Punnett square to show the possible genotypes for their baby. ________ Brown eyed boys ________ Brown eyed girls ________ Blue eyed girls ________ Blue eyed boys What is the probability they will have a BLUE-EYED BOY and get the $1 million? _______________% Why does this cross not follow the 9:3:3:1 pattern for DIHYBRID (2 gene) crosses? ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ Modified from: http://brookings.k12.sd.us/biology 19

Related Documents