Biology 5 ○ 12 Human Genetics

gene frequency

How common in the gene is in the population.

represent the the non tasters.

tt recessive

gene pool

All the genes present in a specific population

The dominant gene is present in tasters. represent that.

TT. Tt

pedigree

The ancestral history of an individual; A chart showing the history of a trait in the family.

When using data from population genetics research:

The sample must have a high probability of representing the population.

Population genetics

The study of a hereditary trait in a large population

Why do identical twins have the same set of genes?

They were born of one fertilized ovum.

A family pedigree is a chart of various patterns that shows a general trend.

false. it shows traits

Thirty people sampled the chemical. twenty people were tasters. How many had homozygous genes?

10 - 30

30 people sampled the chemical. Twenty people were tasters. How many had homozygous recessive genes?

10

Each member of a class sampled a piece of PTC testing paper. 30 people sampled the chemical. Twenty people were tasters. How many had heterozygous genes?

0 -20