Gregor Mendel

Question 1

Gregor Mendel

Answer 1

Father of genetics, Austrian Monk

Question 2

1857

Answer 2

began collecting pure lines of peas

Question 3

Why did he choose self fertilising peas

Answer 3

So all offspring look like their parent

Question 4

How many traits did Mendel choose

Answer 4

7

Question 5

1st trait

Answer 5

Round or wrinkled ripe seed coats(testa)

Question 6

2nd trait

Answer 6

yellow or green seed interiors(cotyledon-food storage)

Question 7

3rd trait

Answer 7

purple or white petals

Question 8

4th trait

Answer 8

Inflated or pinched ripe pods

Question 9

5th trait

Answer 9

long or short stems

Question 10

Why peas

Answer 10

self fertilizing
short growth period
produce large number of offspring

Question 11

Mendel’s Experiment

Answer 11

crossed pure plants with alternative phenotypes for a single trait
Then recorded how many offspring there were of each type(1st generation results)
Allowed them to self-fertilise

Question 12

GG

Answer 12

homozygous dominant

Question 13

gg

Answer 13

homozygous recessive

Question 14

Gg

Answer 14

heterozygous

Question 15

Findings

Answer 15

again recorded natural of offspring(F2)
did maths,atical analysis
deduced several principle
published paper in scientific journal(1866)

Question 16

F1 showed

Answer 16

1 of 2 parental traits

Question 17

f2 generation- missing trait shown

Answer 17

25 percent of time

Question 18

1st result

Answer 18

Traits are not blended as they are passed from parent to offspring

Question 19

2nd result

Answer 19

each parent makes equal contribution

Question 20

3rd result

Answer 20

genes can be carried but not expressed

Question 21

Law of segregation

Answer 21

Traits are controlled by pairs of factors/genes and separate at gamete formation

Question 22

Law independant assortment

Answer 22

When 2 or more characteristics are concerned the factors for these enter the gametes independently of each other