Heredity

A small segment of DNA on a chromosome is called a ________________?

• Gene

• Chromosome

• Protein

• Gamete

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Genes control traits by instructing certain _________________________ to be made.

• Nucleic Acids

• Vitamins

• Proteins

• Carbohydrates

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

A person who has a gene for a genetic disorder, but does not have the disorder is a __________________________.

• Mutant

• Dominant

• Carrier

• Victim

X-Linked (also called sex-linked) disorders affect ______________________.

• Females more often

• Both sexes equally

• Males more often

• Neither sex

How can you tell a male on a pedigree?

• Horizontal Line

• Vertical Line

• Circle

• Square

How can you tell the generation number on a pedigree?

• Count the Circles

• Count the rows

• Count the children

• Count the marriages

If an organism has a dominant trait, it inherited ________________dominant genes?

• 1 or 2

• More than 4

• 3 or 4

• 0 or 1

If an organism has a recessive trait, it inherited ____________________ recessive genes.

• 2

• 3

• 1

• 0

Red (R) is dominant to white (r) in flowers. If the flower is heterozygous, what is the genotype?

• Red

• White

• RR

• Rr

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Red (R) is dominant to white (r) in flowers. A flower is heterozygous, what is the phenotype?

• Red

• White

• RR

• Rr

Tags

NGSS.HS-LS3-2