Choose the correct words or phrases to complete the following description of gen
ID: 201932 • Letter: C
Question
Choose the correct words or phrases to complete the following description of genetic variability.
Please complete the following sentences:
1.) Genetic variability is the presence of differences in
a.) genes
b.) physical traits
among idividuals of a population.
2.) This variation arises from mutations, which can be caused by
a.) radiation
b.) ozone
chemical mutagens, and random chance.
3.) If the mutations occur in reproductive cells, they can cause variation in
a.) mutational potential
b.) heritable traits
4.) Choose the correct words or phrases to complete the following description of evolution.
Evolution occurs when the frequenies of
a.) physical characteristics
b.) genes
c.) behavioral traits
change within a population,
a.) within a single lifetime
b.) across multiple generations
Explanation / Answer
Genetic variability is the presence of differences in genes among the individuals of a population.
This variation arises from mutations, which can be caused by radiation, chemical mutagens and random chance.
If the mutations occur in reproductive cells, they can cause variation in heritable traits.
Evolution occurs when the frequencies of genes change within a population across multiple generations.