Using chromosomal analysis, a biologist working on a prototype can count and examine an individual's chromosomes. This technique helps a biologist to

Question

a
identify the total number of gene defects in an individual.
b
predict the number of possible variations of a gene.
c
compare physical similarities between fraternal twins.
d
detect an unusually large amount of extra genetic material.

Answer 1

The most appropriate answer is:

d. detect an unusually large amount of extra genetic material.

Chromosomal analysis, also known as karyotyping, is primarily used to assess the number and structure of chromosomes. This technique can help detect chromosomal abnormalities such as extra chromosomes (e.g., trisomy 21 in Down syndrome) or missing chromosomes, which indicate variations in genetic material.