b12

Question 1

mitosis?

Answer 1

Mitosis is a type of nuclear division that gives rise to cells that are genetically identical. t

Question 2

meiosis?

Answer 2

Meiosis is a type of nuclear division that gives rise to cells that are genetically different

Question 3

sexual repoduction

Answer 3

Sexual reproduction is a process involving the fusion of the nuclei of two gametes (sex cells) to form a zygote (fertilised egg cell) and the production of offspring that are genetically different from each other

Question 4

asexual repoduction

Answer 4

Asexual reproduction does not involve sex cells or fertilisation. Only one parent is required so there is no fusion of gametes and no mixing of genetic information. offspring are genetically identical to the parent and to each other.

Question 5

Fertilisation?

Answer 5

Fertilisation is defined as the fusion of gamete nuclei, and as each gamete comes from a different parent, there is variation in the offspring

Question 6

haploid

Answer 6

having half the normal number of chromosomes

Question 7

phenotype

Answer 7

the observable characteristics of an organism

Question 8

genotype

Answer 8

the genetic combination of alleles that controls each characteristics

Question 9

recessive

Answer 9

allele is only expressed when two copies are presents

Question 10

chromosomes

Answer 10

thread like structures of DNA

Question 11

dominant

Answer 11

a dominant allele is always expressed of present

Question 12

Monohybrid Inheritance

Answer 12

Some characteristics are controlled by a single gene, such as fur colour in mice; and red-green colour blindness in humans