5.5 Inheritance in Action Flashcards
1
Q
What is the sex of the offspring determined by?
A
The sex chromosomes, X or Y
2
Q
Which sex chromosomes do males have?
A
XY
3
Q
Which sex chromosomes do females have?
A
XX
4
Q
What are genetic diagrams?
A
Biological models used to predict and explain the inheritance of particular characteristics
5
Q
Name the two types of homozygous alleles
A
- homozygous dominant, eg. BB for brown hair
* homozygous recessive, eg. bb for blonde hair
6
Q
Why is there only one type of heterozygous allele?
A
Because there will be one dominant allele and one recessive allele so the dominant allele will always win
7
Q
What are genes controlling the same characteristic called?
A
Alleles
