Biology, 29.11.2019 23:31 frenchpotaetoes2832

Ablack guinea pig crossed with an albino guinea pig produced 12 black offspring. when the albino was crossed with a second black one, 7 blacks and 5 albinos were obtained. what is the best explanation for this genetic situation? write genotypes for the parents, gametes, and offspring.
black appears dominant to albino
b - black (both bb and bb genotypes)
b - albino (bb genotype)
this is a problem showing that 1 phenotype (black color) can be the result of two different genotypes (bb and bb). these two crosses would be the equivalent of test crosses to determine genotype.
a black guinea pig crossed with an albino guinea pig produced 12 black offspring. this is the result (all black offspring) you would expect when breeding two true breeders (two homozygotes bb x bb).
b b
b bb bb
b bb bb
when the albino was crossed with a second black one, 7 blacks and 5 albinos were obtained. this looks like the results you would expect between a heterozygote and an albino (bb x bb).
b b
b bb bb
b bb bb

Answers: 1

Show answers

Another question on Biology

Biology, 21.06.2019 20:20

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Answers: 1

Answer

Biology, 22.06.2019 08:00

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?

Answers: 2

Answer

Biology, 22.06.2019 18:30

What part of the body contains bile, an enzyme that break down lipids?

Answers: 1

Answer

Biology, 22.06.2019 20:00

Which of the following initial observations would more directly lead to this research study? a) ginko biloba is cost effective and also possesses heart-protective, antioxidant, anti-inflammatory properties. b) metformin is an effective treatment of patients with t2d, but shows side effects that complicate the disease state. c) over the past several years, the cost of treating t2d within the united states has increased dramatically. d) many plants contain molecules that improve the health and quality of life of patients with a variety of diseases like t2d. e) t2d affects millions of individuals in the usa and worldwide many of who could benefit from improved therapies.

Answers: 3

Answer

You know the right answer?

Ablack guinea pig crossed with an albino guinea pig produced 12 black offspring. when the albino was...

Questions

Biology, 14.02.2022 08:20

Which describes a frame of reference most likely to be used in high school physics lab motion experiments? A. distances measured from the center of Ea...