sexual and asexual reproduction

Question 1

what is a clone

Answer 1

an organism that is genetically identical to parent

Question 2

how do bacteria produce clones of themselves

Answer 2

they produce identical copies of themselves using asexual reproduction

Question 3

explain in terms of genes how bacteria asexually reproduce

Answer 3

• when they reproduce, they replicate their genetic material and divide in half by mitosis
• there is no mixing of genetic material
  each organism contains identical genes which are genetically identical to parent

Question 4

why does sexual reproduction often result in variation

Answer 4

because the genes are taken from both parents and the offspring produced is not identical

Question 5

what are sex cells called

Answer 5

gametes

Question 6

what is the male gamete

Answer 6

sperm cell

Question 7

what is the female gamete

Answer 7

ova

Question 8

how does an offspring develop

Answer 8

the gametes are fused together during fertilisation. the fertilised egg then develops into an offspring

Question 9

how do some plants reproduce sexually

Answer 9

the pollen cell and egg cell fuse together in the ovule

Question 10

compare asexual and sexual reproduction

Answer 10

• in asexual reproduction only one parent is needed to reproduce, whereas in sexual reproduction, two parents are needed. This slows things down
• in asexual reproduction, if the parent is well adapted to an area, the offspring will share the same characteristics
• in sexual reproduction, variation in offsprings, lead to adaptation in species!! These organisms can continue to reproduce and continue
• in asexual reprocessing, changes in abiotic or biotic factors may affect the whole species (such as disease)