Question { 6117 }

what are Alleles ?

Answer

alternative forms of a gene is/are known as allele. There
may be either only one alternative form or more than
one...but at a time there are maximum upto 2 alternative
forms can be present in an individual at homologus loci

Question { 10457 }

The gene for tallness (T) is dominant over the gene for
shortness (t) in pea plants. A homozygous dominant pea
plant is crossed with a heterozygous pea plant, and 200
seeds are produced. Approximately how many of these seeds
can be expected to produce plants that are homozygous
dominant?

Answer

when a homozygous tall (TT) is crossed with heterozygous
tall (Tt) they will segregate in ratio of 1:1. Thus there
would be nearly 100 seeds of each type. thus the no. of
seeds for homozygous dominant would be 100.

Homozygous Tall (TT) x Heterozygous Tall (Tt)
|
|
|
V
TT, Tt
(1 : 1)

Question { 10117 }

what is totipotency

Answer

The inherent capacity of a cell to divide as well as
differentiate to form a whole organism is known as totipotency