overall

Question 1

sperm cells/ egg cells

Answer 1

23 chromosomes

Question 2

somatic / body cells

Answer 2

46 chromosomes 23 pairs

Question 3

dominant charactistics

Answer 3

the chartists that can be observed the appearance of the individual

Question 4

genes

Answer 4

are sections of DNA

Question 5

recessive charactistic

Answer 5

the charoctistsis that does not appear unless recessive alleles combine eg ff rr (small letters)

Question 6

alleles

Answer 6

variation of genes

Question 7

homologous structures

Answer 7

same basic structures

Question 8

similar structures

Answer 8

common ancestor

Question 9

bases in DNA

Answer 9

adenine A
thymine T
guanine G
cytosine C
form rings of rope ladder

Question 10

evolution

Answer 10

genetic changes in characterists over many generations

Question 11

natural selection

Answer 11

overproduction
variation
competition
selection

Question 12

Charles Darwin

Answer 12

theory of natural selection tortoises, finches

Question 13

natural selection

Answer 13

process where organisms best adapted to an environment will survive. black moth

Question 14

heterozygous
heterozygus

Answer 14

dominant and recessive allele present eg Hh

Question 15

homozygous
homozygote

Answer 15

both allies the same
HH or hh

Question 16

embryology

Answer 16

common ancestor eg gills to breath

Question 17

geographic distribution of species

Answer 17

part of the 5 pieces of evidence for evolution