Modes of Asexual Reproduction

These flashcards cover key concepts of asexual reproduction studied in Grade 9 Science, including definitions, processes, examples, and comparisons with sexual reproduction.

What is asexual reproduction?

A type of reproduction that involves only one parent organism.

How many parents are required for asexual reproduction?

Only one parent is required.

What is one advantage of asexual reproduction?

It allows for rapid population increase.

What is one disadvantage of asexual reproduction?

Lack of genetic diversity.

What is binary fission?

A form of asexual reproduction where a parent organism copies its DNA and splits into two equal-sized individuals.

What is multiple fission?

A type of fission where the parent organism separates into multiple individuals.

What type of organisms typically undergo binary fission?

Prokaryotic organisms, such as bacteria.

How is binary fission different from mitosis?

Binary fission occurs in prokaryotic cells, while mitosis occurs in eukaryotic cells.

What is budding?

A form of asexual reproduction where new individuals sprout off from a parent organism.

In which organisms does budding commonly occur?

In unicellular organisms, like yeast, and multicellular organisms, like hydra.

What is fragmentation?

A form of asexual reproduction where a parent organism breaks into fragments, each of which develops into a new individual.

Which organisms can reproduce through fragmentation?

Starfish and lichens.

What is regeneration?

The ability of an organism to regrow lost body parts through mitosis.

How is regeneration different from fragmentation?

Regeneration involves the original organism regrowing a lost part, while fragmentation involves each part growing into a new individual.

What is parthenogenesis?

A type of asexual reproduction where an embryo develops from an unfertilized egg cell.

Which animal is known to reproduce through parthenogenesis?

The Komodo dragon.

What is vegetative propagation?

A type of asexual reproduction in plants where new individuals are produced without seeds or spores.

Give an example of vegetative propagation in plants.

Strawberries use runners to create new clones.

What is one way humans have utilized vegetative propagation?

Through methods like cuttings and grafting for agriculture.

Do most unicellular organisms reproduce sexually or asexually?

Most unicellular organisms reproduce asexually.

What is the main focus of the lecture on Modes of Asexual Reproduction?

Explore different methods of asexual reproduction and their characteristics.

What occurs during budding in unicellular organisms?

A new individual is called a daughter cell.

What forms a new individual in budding?

A small growth, or bud, that forms on the parent's surface.

How is the division in budding described?

It is an asymmetrical division.

How is the process of asexual reproduction beneficial to an organism?

It allows for quicker reproduction without the need for a mate.

What are common environments where asexual reproduction is advantageous?

Environments where mates are scarce or conditions are stable.

What role does mitosis play in regeneration?

Mitosis is the process used to regrow lost body parts.