Genetics Answers

The gene for tallness (T) in a pea plant is dominant over the gene for shortness (t). The Punnett square below shows the cross between two tall pea plants (Tt). What is the phenotypic ratio of the offspring produced as a result of the cross?

An agronomist cross through breeding guava plants. one parent characters as being round,R, terminal,T, violet,V, and constricted,C,while the other express the contrasting phenotype,wrinkled,axial,white and full. assume that the four pairs of traits are controlled by four genes,RTVC with each gene located on a separate chromosome.in the f1 generation,only round,axial,violet and full were expressed while in the f2 generation,all possible combinations of these traits were expressed in rations consistent with Mendelian inheritance.get all the possible phenotypic and trait frequencies.what is the frequency of the guava plants that will exhibit co-dominant trait in only the first three loci.

how artificial cloning helpful for humans?

write the cytological basis of crossing over

when one gene influences many traits this is called

explain how two examples of physical mutagens exhurt thier mutagenic effects

Some coat colour in cats are sex-linked and are associated with X-chromosome.Blck coat colour is codominant to ginger.Tortoiseshell coat colour is phenotypic expression to heterozygous condition.
A female ginger mates with an unknown male and whose daughter mates with a different unknown male to produce black coated female kitten and two male kitten, one with all black fur and other with all ginger fur

Explain the genetics associated with the generation of cats given by using Punnett square

Can we possess memories passed down from our ancestors?
To put it in other words :
Is it possible that we possess memory molecules, formerly owned by our ancestors, stored in our brain?

In a specific dihybrid cross between 2 plants the ratio 9:5:4:1 is obtained instead of the expected 9:3:3:1. Explain the result.

Does autosomal recessive disease affect the homozygous dominant.