Question

Match the following items.

1. Rr ........ homozygous definition
2. rr .......... homozygous, recessive cell
3. identical alleles .......... homozygous, dominant cell
4. unlike alleles .......... heterozygous, dominant cell
5. RR .......... heterozygous definition

Answer 1

1.Rr.......... hererozygous dominant cell
2.rr .......... homozygous recessive cel
3.identical alleles ........... homozygous definition
4.unlike alleles ............. heterozygous definition
5.RR ...........homozygous dominant cell

Answer 2

Answer: The correct matching for the given items is as follows-

1) Rr- Heterozygous dominant cell

2) rr- homozygous recessive cell.

3) Identical alleles- Homozygous.

4) Unlike alleles- heterozygous.

5) RR- homozygous dominant.

There are two alternative forms of a gene( also called alleles) that correspond to a particular trait or characteristic of the organism. These are dominant and recessive allele.

Dominant allele is the one that expresses itself and masks the recessive allele. It is represented by capital letter ( like R in this case) whereas recessive allele is depicted by small letter ( like r)

When an individual possesses identical alleles for the trait it is called homozygous. When alleles are not alike that is different then it is called heterozygous.