The following seed phenotypes showed up in a generation of plants. which alleles are recessive? blue round = 75 white round = 28 blue wrinkled = 24 white wrinkled = 8

The answer is white and wrinkled.

It is known that the in dihybrid cross (a cross between two different traits), the phenotypic ratio between the offspring of two heterozygous parents in the F2 generation is 9:3:3:1, where:

- 9 is a number of phenotypes with both dominant traits,

- 3 is a number of phenotypes with the first dominant trait and the second recessive trait,

- 3 is a number of phenotypes with the first recessive trait and the second dominant trait,

blue round = 75                             (≈ 9 · 8)

white round = 28                           (≈ 3 · 8)

blue wrinkled = 24                         (= 3 · 8)

white wrinkled = 8                         (= 1 · 8)

So, the ratio between the offspring is close to 9:3:3:1 in F2 generation.

Since in the ratio, 1 is the number of phenotypes with both recessive traits, in this example, this phenotype is white wrinkled, so recessive traits are white and wrinkled.

b would be the right answer

the transfer for conduction is the heat transfering from the liquid to the spoon

the transfer for convection is the heat rising from the liquid to the air

the transfer for radiation is the heat going through the sides of the cup and to the air

at least that is what i would do