Genetics and Cell Review

An organism's phenotype describes its __________.

• genetic makeup
• physical appearance

What do you call a section of DNA that codes for a specific trait?

• nucleus
• chromosome
• gene
• DNA

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

A dominant trait shows up __________.

• only when two dominant alleles are present
• only when one dominant allele is present
• when at least one recessive allele is present
• when at least one dominant allele is present

Tags

NGSS.HS-LS3-1

A recessive trait only shows up when __________.

• two dominant alleles are present
• one dominant allele is present
• two recessive alleles are present
• at least one dominant allele is present

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Purebred is another word for __________, while hybrid is another word for __________.

• dominant; recessive
• recessive; dominant
• homozygous; heterozygous
• heterozygous; homozygous

Tags

NGSS.MS-LS3-2

What word describes how traits are passed from parent to offspring?

• Alleles
• Dominance
• Probability
• Heredity

Tags

NGSS.MS-LS3-2

Which of the following is the genotype for a homozygous recessive trait?

• gg
• Gg
• GG

What type of letters are used to show a trait is dominant?

• capital
• lowercase

What is one or more alternative forms of a gene?

• chromosome
• genotype
• phenotype
• allele

Tags

NGSS.MS-LS4-4

Who was the father of genetics?

• Mendel
• Einstein
• Redi
• Pasteur