test cd + variation

Question 1

2 advantages of asexual reproduction

Answer 1

• only one parent needed
• faster than sexual reproduction

Question 2

define homozygous

Answer 2

a genotype in which the two alleles for the characteristics are genetically identical

Question 3

why do chromosome numbers change in meiosis

Answer 3

Because meiosis creates cells that are destined to become gametes. This reduction in chromosome number is critical — without it, the union of two gametes during fertilisation would result in offspring with twice the normal number of chromosomes!