Genetics Practice Exam

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

An allele whose trait always shows up in the organism when the allele is present.

• recessive allele
• dominant allele
• hidden allele
• present allele

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome

Tags

NGSS.HS-LS3-1

A single piece of coiled DNA found in the cells; contains genes that encode traits.

• gene
• chromosome
• trait
• DNA

Tags

NGSS.MS-LS3-1

Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.

• DNA
• protein
• RNA
• glucose nucleic acid (GNA)

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What characteristic would a child not inherit from parents?

• freckles
• eye color
• hair style
• dimples

Tags

NGSS.HS-LS3-1

He is known as the father of modern day genetics.

• Gregory Mendel
• Greg Mendel
• Gregor Mendel
• Grace Mendel

A human usually has _____ total chromosomes.

• 6
• 22
• 4
• 46

Which of the following alleles is homozygous recessive?

• Tt
• tt
• TT
• T

Dominant alleles are represented by a:

• Male gene
• lowercase letter
• recessive trait
• capital letter