Biology Flashcards
(10 cards)
A skin cell functions differently than a muscle cell because
Different proteins are made in each cell
What is not a use for the immune system
To alter the immune system
An example of reproduction cloning is
Production of desirable traits
Genetic variation can occur through
Mutations
Explain how the events of meiosis produce variation in a species.
Crossing over produces variation because the homologous chromosome “mix” genes. Independent assortment also produces variation.
What is a method of reproductive technology.
In vitro fertilization is when a sperm and egg cell are united outside the women’s uterus, when an embryo develops it is placed back into the uterus for further development.
Distinguish between chromatin and chromosomes
Chromatin is the thread like version of DNA and chromosomes are the condensed version of DNA
Why is meiosis called reduction division
Because it reduces the number of chromosome in the daughter cells by half
What parts are in DNA
Sugar (deoxyribose), phosphate group, and nitrogen bases.
