Human Genetics

Question 1

What are somatic cells?

Answer 1

body cells

Question 2

How many chromosomes do somatic cells have?

Answer 2

46 chromosomes

Question 3

What are gametes?

Answer 3

sex cells

Question 4

How many chromosomes do gametes have?

Answer 4

23

Question 5

Chromosome number 1-22 are called? Number 23 is called?

Answer 5

autosomes, sex chromosome

Question 6

What are the genotypes of a male and female?

Answer 6

XY, XX

Question 7

Who determines the sex of the child?

Answer 7

father

Question 8

What is a sex-linked trait? Who usually shows these types of traits?

Answer 8

genes carried on sex chromosomes, x chromosome (males)

Question 9

What are examples of sex linked traits?

Answer 9

hemophilia , H = normal h + hemophilia

Question 10

What is a karyotype?

Answer 10

picture of all the chromosomes of an individual

Question 11

What is Down Syndrome? What is it the result of?

Answer 11

non-disjunction, Trisosomy 21

Question 12

What is a pedigree? What are the symbols used on a pedigree and what do they represent?

Answer 12

chart that shows genetic history, sequence circle, shaded circle etc