When a test cross is performed between F_1 hy | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In genetics,when two genes are located on the same chromosome,they are said to be linked. Linkage refers to the physical association of genes on a

Vedclass · Accepted Answer

The two genes are linked and present on the same chromosome.

Vedclass · Answer

(B) In genetics,when two genes are located on the same chromosome,they are said to be linked. Linkage refers to the physical association of genes on a chromosome. According to Morgan's experiments on Drosophila,genes that are closely linked show very low recombination frequency,meaning the parental combinations are inherited together much more frequently than the recombinant types. If genes were on different chromosomes,they would show independent assortment,resulting in a $1:1:1:1$ ratio in a test cross,where parental and recombinant types are equal. Since parental types are significantly higher,it indicates that the genes are linked and located on the same chromosome.

When a test cross is performed between $F_1$ hybrid flies,the parental type offspring are produced in much higher frequency than the recombinant type offspring. What does this indicate?

Similar Questions

The number of linkage groups in $Pisum \text{ } sativum$ is

$A$ genetic map is one that........

Give scientific reasons: Linkage and crossing over of genes are alternatives of each other.

For the preparation of genetic maps,the recombination frequencies between genes are additive over short distances but not over long distances due to

Give differences: Crossing over and Linkage.

Vedclass Test Series

Exam Paper Generator

Online Exam Module