Advertisements
Advertisements
Question
Which of the following will not result in variations among siblings?
Options
Linkage
Mutation
Independent assortment of genes
Crossing over
Solution
Linkage
APPEARS IN
RELATED QUESTIONS
Define Linkage.
British geneticist R.C. Punnett developed a graphical representation of a genetic cross called “Punnett Square”. Mention the possible result this representation predicts of the genetic cross carried.
Give detail account of sex-linked inheritance.
When a white eye Drosophila male (Xr Y) is crossed to a red eye female (XR XR), in the F2 generation all the females are red eyed and 50% males are white eyed. In a criss-cross test, when males are white eyed. In a criss-cross test, when a white eyed female (Xr Xr) is crossed to a red eye male (XRY), the F1 generation offspring had white eyed males while the female offspring bad red eyes. Instead of crossing of a white eyed female (Xr Xr} to a red eyed male (XRY), white eye female (XrXr) to white eye male (XrY) is crossed, the F1 generation will have the following phenotypes and genotype.
The genetic map distance between two genes located on the same chromosome can be analyzed by calculating ____________.
All the linked genes in a particular chromosome, constitute a ____________.
The phenomenon of ____________ is universal and it is necessary for the natural selection, because it increases the chances of variation.
The distance between the genes is measured by ______.
Which of the following is a test cross?
The following are results of crossing a female fly (AaBb) with a male fly (aabb).
- AaBb 1005
- aabb 1000
- Aabb 200
- aaBb 210
Which two genotypes are the recombinant offspring?