Mendelian Inheritance

Question 1

Trait

Answer 1

a version of an inherited characteristics such as eye colour, hair colour

Question 2

Gregor mendel performed experiments on pea plants

Question 3

Why were pea plants his choice of study

Answer 3

• Peas reproduce quickly
• peas have both male and female reproductive organs
• peas are self and cross-fertilizing

Question 4

The 7 traits he studied were

Answer 4

• Seed shape
• Flower shape
• Pod shape
• Stem length
• Seed colour
• Flower position
• Pod colour

Question 5

He cross pollinated purple and white flowers which resulted in the F1 generation being..

Answer 5

all purple

Question 6

when self pollinating the purple flowers he got…

Answer 6

75% purple flowers
and 25% white flowers

Question 7

Homozygous

Answer 7

a genotype in which the alleles of a pair are the same (AA,aa)

Question 8

Heterozygous

Answer 8

a genotype in which the alleles of a pair are different (Aa)

Question 9

The dominant trait will be expressed if

Answer 9

• 2 dominant factors ( homozygous dominant) are present (AA)
• 1 dominant and 1 recessive factor(heterozygous dominant) is present (Aa)

Question 10

Reccesive is only expressed if 2 recessive factors are present (homozygous recessive) (aa)

Question 11

Allele

Answer 11

a specific form of a gene (either dominant or recessive)

Question 12

Genotype

Answer 12

the genetic makeup of an individual

Question 13

Phenotype

Answer 13

the physical appearance of a particular gene

Question 14

Punnett squares

Answer 14

show us genotypes

Question 15

Monohybrid

Answer 15

crossing of one trait

Question 16

Dihybrid cross

Answer 16

Cross thats shows the possible offspring for two traits

Question 17

Alleles of different genes assort independently of one another during gamete formation

Question 18

the allele for plant height does not influence the allele for seed colour