B5

Question 1

define gene

Answer 1

a strand of DNA that codes for a characteristic

Question 2

define gamete

Answer 2

sex cell

haploid

Question 3

define dominant allele

Answer 3

only one reuired to express characteristic

Question 4

define recessive allele

Answer 4

two alleles are needed to express a characteristic

Question 5

define genotype

Answer 5

a collection of alleles to express a phenotype

Question 6

what is the prophase

Answer 6

the nuclear enveloope breaks (nucleus opens so chromosomes can move freely)

Question 7

what is the mataphase

Answer 7

chromosomaes line up along the equator (random side in meiosis)

Question 8

what is the anaphase

Answer 8

chromosomes pulled apart

Question 9

what is cytokinesis

Answer 9

nuclear envelope reforms leaving two seperate cells and nuclei

Question 10

How do you anser a natural selection question

Answer 10

Variation (every species has variation)
Inheritance (inherit alles /characteristics)
Change (in environment)
survival of the fittest