asexual vs sexual / meiosis

Question 1

Distinguish sexual reproduction from asexual reproduction

Answer 1

Asexual reproduction generates offspring that are genetically identical to a single parent. In sexual reproduction, two parents contribute genetic information to produce unique offspring.

Question 2

Outline the production of gametes by meiosis.

Answer 2

During meiosis, the pairs of chromosomes separate and segregate randomly to produce gametes with one chromosome from each pair.

Question 2

difference 1 meiosis and mitosis

Answer 2

Mitosis involves the division of body cells, while meiosis involves the division of sex cells.

Question 2

difference 3 meiosis and mitosis

Answer 2

Mitosis gives identical cells to each other and to the mother cell, while meiosis leads to genetic variation due to crossing over and independent assortment.

Question 3

difference 2 meiosis and mitosis

Answer 3

The division of a cell occurs once in mitosis but twice in meiosis.

Question 4

what are the advantages of asexual reproduction

Answer 4

maintenance of genetic continuity, decreased energy requirements, numerous offspring produced quickly.

Question 5

what are the disadvantages of asexual reproduction

Answer 5

The offspring produced in asexual reproduction is a clone, and any harmful mutation will also pass on to the offspring.
The organisms produced have shorter lifespans.
There is only limited diversity within the life forms

Question 6

what are the disadvantages of sexual reproduction

Answer 6

sexual reproduction is energetically expensive and involves a longer gestational period.

Question 7

what are the advantages of sexual reproduction

Answer 7

improves the chances of producing at least some offspring that will survive in an unpredictably variable environment.