Genetics Review

Front

How many chromosomes do humans have?

Back

Humans have 46 chromosomes.

Front

What does a Punnett Square represent?

Back

A Punnett Square shows the possible genotypes and predicts offspring traits.

Tags

NGSS.HS-LS4-3

Front

What is the purpose of a Punnett Square?

Back

To show the possible genotypes, determine the possible phenotypes, and predict offspring traits.

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Front

In which stage of mitosis does the nuclear membrane disappear?

Back

The nuclear membrane disappears during Prophase.

Tags

NGSS.HS-LS1-4

Front

What is a phenotype?

Back

A phenotype is an observable trait that can be seen in a person.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, representing the alleles inherited from parents.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

Front

What is the difference between dominant and recessive traits?

Back

Dominant traits are expressed when at least one dominant allele is present, while recessive traits are expressed only when two recessive alleles are present.

Front

What is the role of alleles in genetics?

Back

Alleles are different forms of a gene that determine specific traits.

Tags

NGSS.HS-LS3-2

Front

What is the significance of the term 'homozygous'?

Back

Homozygous refers to having two identical alleles for a particular gene.

Front

What does 'heterozygous' mean?

Back

Heterozygous refers to having two different alleles for a particular gene.