Question

Match each term with the description

the gene that controls scale shine in fish has two alleles. very shiny (S) and dull (s). Fish that are heterozygous for this gene have slightly shiny scales.

in humans, the gene controlling red-green color vision is located on X-chromosome.

There are three alleles of the gene that controls blood type IA , IB, and i

In caterpillars, there are two genes that control the phenotype of hairs on the body. the hair gene controls whether the body is hair (H) or hairless (s). the length gene controls whether the hairs are long (L) or short (l)

Match them with these options (note some options are not used)

Mutiple allels

Epistasis

Linked genes

Sex-linked genes

incomplete dominance

co-dominance

Answer 1

1.the gene that controls scale shine in fish has two alleles is an example of multiple alleles.

2.in humans, the gene controlling red-green color vision is located on X-chromosome is an example of sex linked genes. This red–green colour blindness is X-linked, as the genes for both M and L opsins are on the X chromosome.

3. three alleles of the gene that controls blood type IA , IB, and i is an example of both multiple alleles and co dominance as It is governed by three alleles namely IA, IB and i. IA and IB show codominance while allele "i" is recessive to both IA and IB.

4. In caterpillars, there are two genes that control the phenotype of hairs on the body. is an example of epistatsis