Missouri Biology EOC Reveiw

Front

What is the impact of global warming on polar bear populations?

Back

If global warming continues at its present rate, polar bear populations will decrease due to the melting of sea ice, which is essential for their hunting and resting.

Front

What is the dominant trait in a genetic cross involving round wings (R) and pointed wings (r)?

Back

Round wings (R) are dominant to pointed wings (r).

Front

What genetic cross produces the greatest number of genotypic and phenotypic variations?

Back

The cross Rr X Rr produces the greatest number of variations.

Front

What happens to DNA when exposed to intense heat?

Back

The chemical bonds of the DNA molecule will be broken.

Front

What is the initial change caused by a DNA mutation?

Back

A change in the sequence of base pairs.

Front

What is the result of the fertilization of an egg?

Back

It restores the diploid number of chromosomes.

Front

Define 'genotype'.

Back

Genotype refers to the genetic makeup of an organism, specifically the alleles it possesses.

Front

Define 'phenotype'.

Back

Phenotype refers to the observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.

Front

What is the role of sea ice for polar bears?

Back

Sea ice serves as a resting spot and hunting ground for polar bears.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to changes in the organism's traits.