Home
Class 12
BIOLOGY
When a yellow mouse were crossed to anot...

When a yellow mouse were crossed to another yellow mouse, the `F_(1)` generation produces yellow and brown-black mice in the ration 2:1. The yellow mice are never homozygous. The reason is

A

Homozygous yellow cannot survive due to lethal effect of genes

B

Yellow mice are not very suitable to live

C

There is no formation of zygotes with homozygous yellow constitution

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

A pea with white flowers was crossed to another pea which is also white flower plant. When selfed the F_(2) generation produced purple and white in the ration 9:7. The reason for the results is that

When Mendel self pollinated the F_(1) plants of genotype RrYy, in the F_(2) generation, the yellow and green colour segregated in the ratio

A pale yellow substance (A), when heated with conc. HNO_(3) , produces a brown gas (B).

In Mirabilies jalapa when two F_(1) pink flowered plants were corossed with each other, the F_(2) generation produced 40 red, 80 pink and 40 white flowering plants. This is a case of

In Mendel's digybrid cross the fractin of yellow and round phenotype pea plant in F_2 generation will be-

In Antirrhinum (Snapdragon), a red flower was crossed with a-white flower and in F_1 generation pink flowers were obtained. When pink flower were selfed, the F_2 generation showed white,red and pink flowers. Choose the incorrect statemes from the following :

A yellow seeded true breeding Pea plant is crossed with green seeded true breeding plant. F_(1) plants were yellow seeded showing that allele for yellow colour is

A yellow round seeded Pea plant is crossed with green wrinkled seeded pea plant. Four phenotypes appeared in the progeny in the ratio of 1:1:1:1. The genotype of the two are

In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F_(1) -generation?

Dihybrid cross is made between RRYY (yellow round seed) and yyrr (wrinkled green seed ) of Pea. F_(2) ratio amongst round yellow, round green, wrinkled yellow and wrinkled green would be