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Question 1

Crossing Over

Answer 1

• Mixing alleles during meiosis

Question 2

Random Fertilisation

Answer 2

• Random combination of sperm and egg during fertilisation

Question 3

Law of Segregation

Answer 3

• During meiosis the two alleles for each gene segregate so that each gamete carries only one allele from each gene pair
• Anaphase 1 and 2

Question 4

Law of Independent Assortment

Answer 4

• Inheritance of one gene does not affect the inheritance of another gene
• Metaphase 1

Question 5

Monohybrid Cross

Answer 5

• Cross involving individuals that are heterozygous for one trait

Question 6

Dihybrid Cross

Answer 6

• Cross involving individuals that are heterozygous for two traits

Question 7

How to Find Pedigrees

Answer 7

1. Find unaffected parents and look at offsprings
2. If offsprings are affected then it is recessive
3. If offsprings are unaffected it is dominant
4. To identify if its autosomal or sex linked, look at other parents on the pedigree and identify FDD or MSR