Hereditery And Variation Flashcards by Kya Browne

Q

What is the function of the nucleus?

A

It contains genetic material (DNA).

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What happens during mitosis?

A

Two identical daughter cells are produced.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is the result of meiosis?

A

Four non-identical gametes are produced.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What are chromosomes made of?

A

DNA.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

How many chromosomes do humans have?

A

46 chromosomes (23 pairs).

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is a gene?

A

A section of DNA that codes for a trait.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is a dominant allele?

A

An allele that is expressed even if only one copy is present.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is a genotype?

A

The genetic makeup of an organism.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is a phenotype?

A

The physical expression of the genotype.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is continuous variation?

A

Variation with a range of values, like height.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is discontinuous variation?

A

Variation with set categories, like blood type.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is a mutation?

A

A change in the DNA sequence.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is selective breeding?

A

Breeding for specific desirable traits.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly