Genetics Review

Genetics is the study of...

• Body systems

• cell division

• heredity

• sexual reproduction

Chromosomes carry _______ which express specific traits.

• Genes

• Information

• DNA

• All of the above

The variance in a gene, which occur on a fixed spot on a chromosome is a called an

• Allele

• Cell

• Centromere

• Nucleus

On a punnett square, two capital letters indicate a gene which is

• Homozygous dominant

• Homozygous recessive

• Heterozygous

• None of the above.

Probability in genetics is expressed in

• Equations

• Fractions

• Percentages

• Whole numbers

Genetic variation occurs in what type of reproduction

• Sexual

• Asexual

• Both

On a punnet square, a capital letter and lowercase letter indicate a gene that is

• Homozygous Dominant

• Homozygous Recessive

• Heterozygous

• None of these

On a punnett square, two lowercase letters indicate a gene which is

• Homozygous dominant

• Homozygous recessive

• Heterozygous

• None of these

This represents the genetic makeup of an organism

• Genotype

• Phenotype

• Alleles

• Genes

This represents the physical appearance of an organism.

• Genotype

• Phenotype

• Heredity

• Genes