Question

dihybrid plants forms how many types of pollengrains

Answer 1

the anthers of homozygous dihybrid plants will produce only one type of pollen grain.for example,a male plant which genotype YYRR will produce a pollen with YR combinations of alleles. the anthers of heterozygous dihybrid plants will produce four types of pollen.

Answer 2

Answer:two answer can be possible

One and four. Let see :

Explanation:

If in the case of homozygous

Let male gamete be YYRR then

Type of gamete =2*n where n =no. of heterozygous

Thus n=0 therefore type of ga mate =1 ie. YR thus type of pollen grain is one

Similarly let male gamate be YyRr

Now n=2. Thus thus type of pollen grain is 2*2 =4. ie. YR Yr. yR. yr

Thus type of pollengrain be 4