In Drosophila melanogaster the genes for yellow body colour and white eye colour
ID: 93682 • Letter: I
Question
In Drosophila melanogaster the genes for yellow body colour and white eye colour are linked this means that ____.
They produce more parental types than recombinant types
They produce only homozygotes
They produce more recombinant types than parental types
They can produce only one phenotype
They cannot separate
a.They produce more parental types than recombinant types
b.They produce only homozygotes
c.They produce more recombinant types than parental types
d.They can produce only one phenotype
e.They cannot separate
Explanation / Answer
If two genes are linked ,it means that they lie on the same chromosome. If the genes are linked, there is a tendency to produce more parental types than recombinant types.Unlinked genes undergo independent assortment which gives rise to equal number of parental and recombinant types.Linked genes do not undergo independent assortment and are inherited together as a single unit, leading to the production of parental type.
Answer: They produce more parental types than recombinant types