Inheritance

Front

What is inheritance?

Back

Inheritance is the process by which genetic information is passed from parents to offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is a gene?

Back

A gene is a piece of DNA that contains the instructions for making a specific protein or trait.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Front

What is a genotype?

Back

A genotype is the genetic makeup of an individual, represented by alleles (e.g., AA, Aa, aa).

Tags

NGSS.HS-LS3-2

Front

What is a phenotype?

Back

A phenotype is the physical appearance or observable traits of an individual.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene (e.g., AA or aa).

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene (e.g., Aa).

Tags

NGSS.HS-LS3-2

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the genetic outcomes of a cross between two individuals.

Front

What is the probability of an offspring having a dominant trait if both parents are homozygous recessive?

Back

0%.

Front

What is the probability of an offspring having a recessive trait if both parents are heterozygous?

Back

25%.

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

Front

What is the significance of the 25% in a Punnett square?

Back

Each box in a Punnett square represents a 25% chance of that genotype occurring in the offspring.

Tags

NGSS.HS-LS4-3