9.2 Meiosis

Question 1

what is the process of meiosis

Answer 1

1. meiosis 1
   - homologous chromosomes pair up and their chromatids wrap around each other
   - crossing over happens
   - homologous pairs separate with one chromosome from each pair goes into a daughter cell
2. meiosis 2
   - chromatids move apart
   - 4 cells formed

Question 2

how does meiosis bring about genetic variation

Answer 2

1.independent segretation of homologous chromosomes
2. new combinmations of maternal ans peternal alleles by corssing over=

Question 3

what is a gene

Answer 3

a length of DNA that codes for a polypeptide

Question 4

what is the locus

Answer 4

the position of a gene on a chromosome or DNA molecule

Question 5

what are homologous chromosomes

Answer 5

a pair of chromosomes that have the same gene loci