Homework Answers
41) this is an example of incomplete dominance when true-breeding red flowers are crossed with true-breeding white flowers, let the alleles be R-red, W-white 'then the true-breeding red plant is RR a true-breeding white plant is WW
then the cross is
RR 
WW
RW
so progenies are heterozygous so they are pink so the answer is
c) only pink
42) RW RW
| R | W | |
| R | RR (red) | RW (pink) |
| W | RW (pink) | WW ( white) |
in the F2 it is possible to get white, red, and pink so the answer is d) all of the above
43) the phenotypic ratio is
red:pink:white=1:2:1
so answer is c) 1:2:1
44) the genotypic ratio is
RR:RW:WW=1:2:1
so answer is 1:2:1
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42. true-breeding (homozygote) red flower plant was bred with a true-breeding pure white flower plant (therefore...
9) A flower breeder notices that a cross between true-breeding red roses and true-breeding white roses...
9) A flower breeder notices that a cross between true-breeding red roses and true-breeding white roses makes all red-flowering F1 offspring. Interbreeding these F1 offspring, she gets 100 red-flowering roses, 40 pink-flowering roses, and 44 white-flowering roses in the F2 generation. What are the genotypes of the parents, F1 offspring, and F2 offspring? What is the probable mode of inheritance? Check your answer with the appropriate statistical test.
ANSWER ALL 33) In snapdragons, a cross between red and white flower color parents result in...
ANSWER ALL
33) In snapdragons, a cross between red and white flower color parents result in pink flowers in the F1 generation. This is an example of a) codominance b) incomplete dominance c) sex linked dominance d) autosomal dominance 34) ABO blood type is an example of what type of inheritance? a) sex-linked inheritance b) autosomal inheritance c) codominance d) incomplete dominance 35) Widow's peak is a) sex-linked inheritance b) autosomal inheritance c) cedominance d) incomplete dominance 36) The presence...
The snapdragon flower in Tennessee and Alabama are both white. When these two strains of snapdragon...
The snapdragon flower in Tennessee and Alabama are both white. When these two strains of snapdragon were crossed, the resulting F1 produces purple-color flower. When the F1 was self-crossed, the F2 progeny were 540 purple and 420 white. 16. What kind of inheritance pattern is this? A. recessive epistasis B. complete dominance C. dominant epistasis D. codominance E. complementation 17. What is the genotype of the F1 progeny? (let’s assume two involved genes are BB and DD) A. BBdd B....
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When Mendel crossed pure breeding peas having purple flowers with pure breeding peas having white flowers, all of the offspring had white flowers. These results mean that white flower color is the: a.) genotype. b.) dominant phenotype. c.) recessive phenotype. d.) mode of inheritance.
1. What ratio of offspring would result from a cross between a white-eyed male and a...
1. What ratio of offspring would result from a cross between a white-eyed male and a female that is heterozygous for red eye color? 2. If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of? a. dominance b. codominance c. multiple alleles d. incomplete dominance 3. The ABO blood groups in humans are expressed as the IA, IB, and i alleles. The IA allele encodes the A...
Required information Fruit flies normally have red eyes. Seven different true-breeding strains of fly with white...
Required information Fruit flies normally have red eyes. Seven different true-breeding strains of fly with white eyes have been identified (A-G). In each strain, the white eye trait is due to an autosomal recessive allele. It is possible all seven strains have mutations in the same gene. Alternatively, they may have mutations in different genes. To determine how many genes are involved in eye color in these flies, pair-wise crosses are performed between each strain. The offspring phenotypes resulting from...
7. Tra diploid organism has the genotype AABh, what% of its gametes would you expect to...
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what are the sex/phenotype of offspring from a cross of true-breeding white-eyed male and red-eyed female...
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Page 2 NAME: 6. The failure of homologous chromosomes for sister chromatids) to separate properly during...
Page 2 NAME: 6. The failure of homologous chromosomes for sister chromatids) to separate properly during cell division is called a) aneuploidy b) triploidy c) non-disjunction d) autosomal dysfunction 7. Ia diploid organism has the genotype AAB, what of its gametes would you expect to have the genotype AB (assume that A/a locus and B/blocus are found on different chromosomes)? a) 1996 b) 2596 c) 5036 d) 7596 8. Phenylketonuria is an inherited human genetic disorder resulting from a mutation...
ANSWER ALL
33) In snapdragons, a cross between red and white flower color parents result in pink flowers in the F1 generation. This is an example of a) codominance b) incomplete dominance c) sex linked dominance d) autosomal dominance 34) ABO blood type is an example of what type of inheritance? a) sex-linked inheritance b) autosomal inheritance c) codominance d) incomplete dominance 35) Widow's peak is a) sex-linked inheritance b) autosomal inheritance c) cedominance d) incomplete dominance 36) The presence...
1. What ratio of offspring would result from a cross between a white-eyed male and a female that is heterozygous for red eye color? 2. If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of? a. dominance b. codominance c. multiple alleles d. incomplete dominance 3. The ABO blood groups in humans are expressed as the IA, IB, and i alleles. The IA allele encodes the A...
Required information Fruit flies normally have red eyes. Seven different true-breeding strains of fly with white eyes have been identified (A-G). In each strain, the white eye trait is due to an autosomal recessive allele. It is possible all seven strains have mutations in the same gene. Alternatively, they may have mutations in different genes. To determine how many genes are involved in eye color in these flies, pair-wise crosses are performed between each strain. The offspring phenotypes resulting from...
7. Tra diploid organism has the genotype AABh, what% of its gametes would you expect to have the genotype A (assume that A/a locus and B/blocus are found on different chromosomes)? a) 1598 b) 2596 c) 5096 d) 7546 8. Phenylketonuria is an inherited human genetic disorder resulting from a mutation to the PAH gene. Individuals with mutant forms of the PAW gene exhibit leaming deficits, abnormal skin pigmentation, as well as heart problems. This is an example of: a)...
Page 2 NAME: 6. The failure of homologous chromosomes for sister chromatids) to separate properly during cell division is called a) aneuploidy b) triploidy c) non-disjunction d) autosomal dysfunction 7. Ia diploid organism has the genotype AAB, what of its gametes would you expect to have the genotype AB (assume that A/a locus and B/blocus are found on different chromosomes)? a) 1996 b) 2596 c) 5036 d) 7596 8. Phenylketonuria is an inherited human genetic disorder resulting from a mutation...
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