Advertisements
Advertisements
प्रश्न
What is a linkage? How many linkage groups do occur in human being?
उत्तर
The tendency of two or more genes present on the same chromosomes to be inherited together is known as linkage.
Humans have 23 linkage groups because they have 23 pairs of chromosomes. The maize plant has 10 linkage groups because it has 10 pairs of chromosomes.
APPEARS IN
संबंधित प्रश्न
Name the ‘two’ types of maps generated by H.G.P.
Answer the following question.
Name the type of cross that would help to find the genotype of a pea plant bearing violet flowers.
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.
Linkage reduces the frequency of ______.
Which of the following will not result in variations among siblings?
The contrasting pairs of factors in Mendelian crosses are called ______.
In a given plant, red colour (R) of fruit is dominant over white fruit (r); and tallness (T) is dominant over dwarfness (t). If a plant with genotype RRTt is crossed with a plant of genotype rrtt, what will be the percentage of tall plants with red fruits in the next generation?
A and B genes are linked. What shall be the genotype of progeny in a cross between AB/ab and ab/ab?
Which of the following is a test cross?
The strength of linkage between two genes is ______.
