If black fur color is controlled by a dominant allele (B) and brown by its recessive allele (b), give the genotypes of the
parents and offspring of a cross of a black male with a brown female that produces 1/2 black offspring and 1/2 brown
offspring. What will be an ideal response?
ANSWER: Black male (Bb) x brown female (bb)
You might also like to view...
Assume that in guinea pigs, dark brown fur (B) is dominant to black fur (b). If you mate a homozygous black guinea pig with a heterozygous brown guinea pig, what proportion of the progeny will be black?
A) none B) 1/4 C) 1/2 D) 3/4 E) all
Which organisms possess an open circulatory system?
a. Annelids b. Arthropods c. Sharks d. Gorillas e. Cephalopods
Which of the following ultimately accounts for
variation in genetic traits? a. replication of DNA molecules b. genetic mutation c. asexual reproduction d. ecological succession e. homeostatic mechanisms
If human gametes were diploid
A. the products of fertilization would have the same number of chromosomes as their parents. B. the products of fertilization would have fewer chromosomes than their parents. C. fertilization could not occur. D. the products of fertilization would have more chromosomes than their parents. E. the embryo would be diploid.