Brainscape's Knowledge GenomeTM

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


See full index

Biology S4 > Reproduction > Flashcards

Reproduction Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

Why do organisms reproduce?

A

To ensure the survival of species

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

What would happen to a species if every individual from that species suddenly lost the ability to reproduce?

A

The likely result is the extinction of a species.

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

Asexual reproduction

A

Asexual reproduction involves a single parent. It results in offspring that are genetically identical to the parent.

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

Sexual reproduction

A

Sexual reproduction involves two parents. Parents produce reproductive cells called gametes that unite to form an offspring.

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

How much of your parents make up your genetic code?

A

All your genetic code is a combination of your parents.

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

How much from each parent?

A

Half of your genetic code comes from your mom and half comes from your dad.

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

How is this different from organisms such as bacteria and protozoa?

A

Bacteria and protozoa have an asexual mode of reproduction so their offsprings are genetically identical to the organism. There is only one parent cell involved.

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

Definition of fertilization

A

Fertilisation is the process by which two haploid specialised reproductive cells called gametes combine to form a single diploid cell called a zygote.

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

Definition of gametes

A

Gametes are specialised reproductive cells produced during meiosis that has the haploid number of chromosomes.

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

Definition of a haploid cell

A

Haploid cells have one complete set of chromosomes. In most organisms, this means they have half the usual number of chromosomes.

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

Definition of a diploid cell.

A

Diploid cells have two complete sets of chromosomes. In most organisms, this means they have the full, normal number of chromosomes.

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

How do simple single celled prokaryotic organisms reproduce?

A

Single celled prokaryotic organisms use asexual reproduction which involves a single parent. It results in offspring genetically identical to each other and the parent.

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

Asexual reproduction involves what kind of nuclear division?

A

Mitosis is the kind of nuclear division involved in asexual reproduction.

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

What are the several methods of asexual reproduction?

A

Asexual reproduction involves different methods: binary fission, fragmentation and budding.

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

What type of cell division produces gametes?

A

Meiosis

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

Why must gametes contain only half the parent’s genetic information?

A

Gametes contain half the usual number of chromosomes. At fertilisation, half of your father’s genome is mixed with half of your mother’s genome to form your complete genome.

17
Q

Explain why organisms that live in a stable environment often use asexual reproduction?

A

Asexual reproduction requires less energy and is faster, ensuring rapid colonization of habitats. In a stable environment, organisms don’t need genetic variation to adapt to changing environmental conditions.

18
Q

Why is a species that reproduces sexually more likely to survive a sudden change in environment than a species that reproduces asexually?

A

During sexual reproduction, the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents. The genetic diversity of sexually prodced offspring is thought to give species a better chance of surviving in an unpredictable or changing environment.

19
Q

Sexual vs asexual number of parents

A

Sexual: 2 parent
Asexual: 1 parent

20
Q

Sexual vs asexual genetic material

A

Sexual: mix of genes
Asexual: same inherited genes

21
Q

Sexual vs asexual genetic diversity

A

Sexual: High, offspring has genes from two different parents
Asexual: Low, the offspring is a clone of the parent cell.

22
Q

Sexual vs asexual energy and resources

A

Sexual: more energy is required to find mates and combine gametes
Asexual: Less energy is required for a cell to split

23
Q

Sexual vs asexual Evolution

A

Sexual: adjusts to environment and adapts to changes

Asexual: Maintains successful traits

24
Q

Sexual vs asexual how much DNA from one parent

A

Sexual: 50%
Asexual: 100%

25
Q

Sexual vs asexual examples of organisms

A

Sexual: animals, plants, fungi
Asexual: protists, fungi, plant, and lower animals.

26
Q

Key points

A

Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent.

Sexual reproduction involves two parents and produces offspring that are genetically unique.

During sexual reproduction, two haploid gametes join in the process of fertilization to produce a diploid zygote.

Meiosis is the type of cell division that produces gametes.

Biology S4 (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions