Meiosis- Intro and Importance

Question 1

What is meiosis?
-diploid vs haploid numbers

Answer 1

the process by which sex cells (gametes) are formed. the diploid chromosome is reduced to form haploid gametes. (2n becomes n)
Diploid is 2n=46
Haploid is n=23

Question 2

1. Importance
   it maintains what?
   -what is it necesarry for?

Answer 2

meosis maintains the chromosome number of a species between generations
-sexual repro.

Question 3

2. Sexual repro. ensures what? And it increases what?
   -in humans, how many chromosomes from mom and dad
   -what are paired chromosomes
   -how is appearance determined

Answer 3

Ensures a recombination of genes (maternal and paternal chromosmes united in zyote) AND increases genetic diversity
-paired chromosomes are homologus (similar size shape, centromere location, gene arrangement)
-by how genes on the homologus chromosomes interact

Question 4

3. Meiosis produces gentically distinct ______.
   -how does it do this
   -why is it important

Answer 4

Gametes
-crossing over and independent assortment
-for genetic diversity

Question 5

in humans, where does meiosis take place for males and females
-what process makes sperm
-what process makes the ovum
*know the summary chart

Answer 5

-for males, in the testes, and females in the ovaries
-spermatogenisis
-oogenisis