Review for Test LS.10

Front

What is the shape of a strand of DNA?

Back

Double helix

Front

What is a segment, or specific portion, of a DNA molecule that determines traits?

Back

Gene

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What does AA represent in genetics?

Back

Dominant

Front

In a Punnett square, if B = brown fur and b = white fur, what is the probability for white fur?

Back

50%

Tags

NGSS.HS-LS3-3

Front

What is the term for observable traits like brown skin?

Back

Phenotype

Tags

NGSS.HS-LS4-4

Front

What is the term for the genetic makeup of an organism?

Back

Genotype

Front

What are chromosomes?

Back

Structures that contain DNA and genes.

Tags

NGSS.HS-LS3-1

Front

What is a trait?

Back

A characteristic that is inherited.

Tags

NGSS.HS-LS3-1

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their traits even if only one copy is present; recessive alleles require two copies to express their traits.

Front

What is a Punnett square used for?

Back

To predict the probability of offspring inheriting certain traits.

Tags

NGSS.HS-LS4-3