Patterns of Inheritance

Define genotype

Define phenotype

What are mutagens?

Example of physical agents?

Example of chemical agents?

Example of biological agents?

Types of chromosome mutations?

What is deletion?

What is inversion?

What is translocation?

What is duplication?

What is non-disjunction?

What is aneuploidy?

What is polyploidy?

How does genetic variation arise during meiosis?

How does fertilisation lead to genetic variation

How can phenotypic variation can be caused by environmental factors only?

How can phenotypic variation be caused by the environment interacting with genes?

Define allele

Define heterozygous

Define homozygous

Define monogenic

One fruit fly parent is homozygous for normal wings and the other parent is homozygous for vestigial wings. What is the genotypes of the second generation?

Define dihybrid inheritance

The parents are heterozygous and both have a round and yellow seed. What is the genotype of the offspring an calculate the ratio?

What is the phenotypic ratio of the F2 generation in a dihybrid cross?

What are multiple alleles?

What are the four blood groups

What is codomiance?

What alleles are codominant and recessive for blood groups?

What blood group will the offspring be of a parent who is heterozygous for blood group A and a parent heterozygous for blood group B

Define sex-linked?

What are autosomes?

What the human sex chromosomes?

State the expected ratio for F2 generation for monohybrid, dihybrid and codominant

What the main differences in the male sex chromosomes?

Give examples of genetic disorders caused by faulty alleles on sex chromosomes

Explain why the phenotypic ratio is 3:1 when a heterozygous normal vision female have children with a normal vision male

Why are genes on the same autosome linked?

What is codominant?

What is the MN blood group system

Explain why the phenotypic ratio is 2:1:1 for the offspring of parents who have sickle-cell trait

Define epistasis

What is recessive epistasis