Question

Match the definitions with the terms.
genotypes made of two
different alleles
1. alleles
genotypes made of the
same alleles
2. dominant
different forms of genes
for a single trait
3. heterozygous
allele that is expressed
only in the homozygousp
4. homozygous

Answer 1

Answer:

row 1         row 2

 1                  3

2                  4

3                  1

 4                  5

 5                  2

Explanation

We know that we are diploid organism. So, we have 2 set of chromosome. Each type of chromosome are present in one pair. Each chromosome contains many genes. The position of gene in a chromosome is known as locus. 2 gene, positioned in same locus of the nonsister chromosome ( paired chromosome) are known as allele of each other(*).  

1. Heterozygous condition is that situation when the alleles are express 2 different forms of gene.
2. one, which is always express that is known as dominant form.
3. the other allele, which expresses only in homozygous condition is known as recessive allele.

In homozygous condition alleles are in same form.

Example

T/t- allele

TT- tall (homozygous dominant)

Tt- tall (heterozygous dominant)

tt- dwarf (homozygous recessive)