In cattle, coat color is inherited through incomplete dominance. Cattle homozygous for red have red coats, cattle homozygous for white have white coats and heterozygous cattle have roan coats. What is the probability of a cattle with a red coat resulting from a roan coat parent and a red coat parent?

Probability of having a cattle with a red coat resulting from a roan coat parent and a red coat parent %

Explanation:

Given -

Allele for red color coat be represented by "R"

and the allele for white color coat be represented by "r"

Genotype of  red  coated cattle is RR

Genotype of  white  coated cattle is rr

Genotype of  roan coated cattle is Rr (Roan color is due to incomplete dominance)

Cross is carried out between roan coat parent (Rr) and red coat parent (RR)

RR * Rr

RR, Rr, RR, Rr

Out of four offspring two are having red coat (RR)

Thus, probability of having a cattle with a red coat resulting from a roan coat parent and a red coat parent would be

%

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !