Cell division - Reproductive strategies

Question 1

(Asexual) Binary fission

Answer 1

(Allow for efficient growth in population)

Cells split with the same genetic information to create identical organisms.

Question 2

(Asexual) Budding

Answer 2

A miniature version of the parent grows out from the parent’s body.

Question 2

(Asexual) Vegetative reproduction

Answer 2

Common in plants (spider plants)
Separate organisms grow from the roots of their parents.

Question 2

(Asexual) Fragmentation

Answer 2

A new plant is formed from a fragment of the parent plant (from cutting)

Question 3

(Asexual) Parthenogenesis

Answer 3

An unfertilized egg develops into a new adult (bee)

Question 4

(Asexual) Spores

Answer 4

Easily distributed by wind and water. May be haploid or diploid.

Question 5

what does a sporophyte produce

Answer 5

(contains a protective wall that opens to release seeds when conditions are favourable)

Sporophyte:
- The diploiod generation of a plant.
- Through the process of meiosis a sporophyte produces a hapliod seed.
- The hapliod seed grows without fusion into a gameophye

Question 6

(Asexual) Gametophytes

Answer 6

(Haploid generation of a plant)
- Produced by a sporophyte to grow from a hapliod cell to a gamophyte
- The gameopyte releases male and female seeds
- These seeds fuse to creaste a new plant
- After fusing this plant is considered diploid and the cycle repeats itself.

Question 7

Advantages of Sexual Reproduction

Answer 7

• Variation allows adaptiveness
• Being genetically diverse helps lower competition.
• Crossing over and genetic differences allow for the opportunity to eliminate damaged chromosomes
• There’s only a chance you will inherit something compared to asexual where you will inherit.

Question 8

Advantages of Asexual Reproduction

Answer 8

• Doesn’t require another individual
• Requires less energy
• offspring often don’t separate from their parents until they are capable of independent survival.