Question

What term describes an individual possessing two of the same alleles at a gene locus? monohybrid dihybrid homozygous wild type heterozygous

Answer 1

Answer:

Homozygous.  

Explanation:

A cell is said to be homozygote for a particular gene when  similar  allele of the gene are found on the same loci of both homologous chromosomes  in the cell.

if  two copies of a gene that codes for a particular trait  is present in an individual, such that each time the copies of gene are fully expressed despite the presence of any other allele of the same gene, the expressed gene is said to be homozygote -dominant for that character, or trait.

Such dominant allele is usually represented in genetic diagram by upper case letter. Assuming the trait is white color the gene is represented with W., while  the Genotype   combination is  represented as WW. since the two genes are present on  both homologous chromosomes.

Therefore, if each time the homozygous dominant gene is crossed with another allele  for  the same traits, and the dominant allele  always express from generation to generation, then the  homozygous dominant  allele is said to always breed-true.

The homozygous gene that can not express itself  in the presence of dominant gene, but only does so  in  its absence , that is only when in presence of similar allele is said to be Homozygous- recessive for that gene.  The gene is usually represented by  Lower case, e.g w and  the genotypic  combinations by double lower case  ww.

Answer 2

Question was't arranged i have arranged it in  ask for detail section.

Answer:

Option e. homozygous is the correct answer.

Explanation:

A gene which has two identical alleles on homologous chromosomes is called homozygous. It is denoted by XX (capital letters)  for dominant character (alleles) and  xx (lowercase letters) for recessive character (alleles).