Genetics

Question 1

What is the positive factors of sexual reproduction?

Answer 1

-species will have genetic variation meaning the organism can easily adapt and change in the environment
-genetic variation also means there is more chance of a beneficial mutation that will help the species survive in different situations

Question 2

What is the negative factors of sexual reproduction?

Answer 2

-takes a long time (e.g: human pregnancy lasts 9 months
-Must find a mate in order to reproduce (this may be an issue for endangered species as it can be harder to find mate if there are limited options left

Question 3

What are the key differences between Mitosis and Meiosis?

Answer 3

MITOSIS
-both genetically identical cells
-produces 2 daughter cells
-produces diploid cells (full set of chromosomes 46)
MEIOSIS
-all cells have genetic variation meaning they’re all genetically different
-produces 4 daughter gametes
-haploid cells (have half the genetic information so when male and female gametes fuse together they have a full set)

Question 4

What are the 5 steps of Meiosis?