DNA inheritance/different crosses

Question 1

Monohybrid

Answer 1

Involves one trait

Example: Crossing to determine possible eye colours of offspring

Question 2

Diyhybrid

Answer 2

Involves more than one trait

Ex: Crossing hair and eye color to determine two traits of offspring

• Use foil to cross

Question 3

Incomplete dominance

Answer 3

Neither allele shows completely, they mix to show the one trait.

Ex: Red and white flowers that have two dominant alleles make a pink flower.

Question 4

Codominance

Answer 4

Both alleles expressed.

Ex: Type A/B blood type

Question 5

Sex-linked traits

Answer 5

Traits linked and carried by either the X or Y

Example: Colour blindness

Question 6

Pedigree inheritance

Answer 6

Family traits show which offspring expressed a certain trait.

Question 7

Mapping chromosomes

Answer 7

1) Determine the recombination frequencies by finding the different traits from the parents.

2) Add the recombination frequencies (2)

3) Divide by the number of offspring

4) Multiply by 100

5) Map (Will be a gage of numbers and that is how far away they are from the other)