Genetics and Heredity

Question 1

Genetics definition
Heredity definition
Genes definition
-where are genes located
-how much is inherited from each parent?
-what do parent genes do together

Answer 1

-study of the transmission of characteristics from parents to offspring
-passing of traits from parents to offspring

-units of heredity
-chromosomes
-half and half
-interact

Question 2

Gregor Mendel
-Father of ______
-his experiment on _____ provides a basis for what?

Answer 2

Genetics
-garden peas, basis for understanding heredity

Question 3

Why Pea plants?
1. how many characteristics are they expressed in?
2. How can they be bred? What kind of fertalization? Traits are _____ through generations
3. can also be ______ fertalized. how does that work? combined male and female ______ _____
4. is time less or more
5. are there ethical concerns

Answer 3

1. 2
2. true. self fertalization.constant
3. cross fertalized. stamen from one plant on pistil of another. sex cells.
4. less
5. no

Question 4

Mendel’s Experiments
-what did he do to determine what?
-tall vs short? round vs wrinkled? yellow vs green seeds? what did f1 gen have?
-what controlled traits of the plant? what 2 types were there?

-then, what did he cross to form F2 generation?
-how much % expressed the dominant trait and how much expressed the recessive?

Answer 4

-cross fertalized pure bred (P) plnts to determine the F1 generation
-tall, round, yellow
-genes, dominant and recessive

=2 hybrid plants from f1
-75% and 25%