Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Botanical Diversity > Evolution > Flashcards

Evolution Flashcards

1
Q

Evolution is the change in what?

A

Genetic composition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Species can successfully do what?

A

Interbreed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Who first described natural selection ?

A

Darwin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is natural selection the process of?

A

Individuals best suited to survive reproduce

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does natural selection alter?

A

Genes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is adaptation?

A

Increased ability of a population to reproduce in a specific area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the definition of a mutation?

A

The change of nucleotide sequences

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where do mutations occur most?

A

Meiosis/mitosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The variation upon which natural selection acts is what?

A

Mutations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Beneficial mutations normally come from?

A

Chance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is speciation?

A

When a population becomes reproductively isolated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is sympatric speciation?

A

Occurs without physical separation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Polyploid gametes occur due to a lack of what?

A

Cytokinesis between replicated chromosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is non-disjunction?

A

Replicated chromosomes fail to be pulled apart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Non-disjunction produces how many gametes?

A

+ or - expected amount of chromosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How does polyploidy occur?

A

It’s the result of non-disjunction during meiosis

17
Q

How many zygotes does polyploidy produce?

A

4n (2n egg + 2n sperm)

18
Q

Are polyploidy plants larger or smaller than normal plants?

A

Larger

19
Q

Can polyploidy plants interbreed with other plants?

A

No, they can only breed with each other

20
Q

Are polyploidy plants uncommon?

A

No, most plants are, especially crops

21
Q

If a plant has a mutation that delays flowering, what happens between them and the parent?

A

No interbreeding

22
Q

What is allopatric speciation?

A

When species are physically isolated from each other

Botanical Diversity (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions