#Question id: 4822
#Unit 8. Inheritance Biology
In a particular species of mammal black hair (B) is dominant to green hair (b) and red eyes (R) are dominant to white eyes (r). If a BbRr individual is mated with a bbrrindividual the expected phenotypic ratio of the offspring is 1 black-red : 1 black-white: 1 green-red : 1 green-white. However, when you mate these individuals you find that the phenotypic ratio of the offspring is 6 black-red :1 black-white : 1 green-red : 6 green-white. What could account for this difference?
#Question id: 4823
#Unit 8. Inheritance Biology
Which one of the following DNA markers can be used to distinguish between a homozygote and heterozygote ?
#Question id: 4824
#Unit 8. Inheritance Biology
If plant with genotype AaBb is test cross where A and B are link at 10 map unit in trance configuration then the probability of getting AaBB and AaBb genotype respectively?
#Question id: 4825
#Unit 8. Inheritance Biology
How many genetically different gametes can be made by an individual of genotype AaBbCcDd if gene A, B are completely link and other are unlink?
#Question id: 4826
#Unit 8. Inheritance Biology
In Drosophila melanogaster, vestigial wings are determined by a recessive allele of a gene that is linked to a gene with a recessive allele that determines black body color. T. H. Morgan crossed black-bodied, normal-winged females and gray-bodied, vestigial-winged males. The F1 were all gray bodied, normal winged. The F1 females were crossed to homozygous recessive males to produce testcross progeny. Morgan calculated the map distance to be 17 map units. Which of the following information is correct about the testcross progeny?
#Question id: 4827
#Unit 8. Inheritance Biology
A cross between individuals with genotypes AaBbX aabb produces the following progeny:
AaBb - 83, aaBb- 21, Aabb- 19, aa bb -77
Which of the following statements is true?