MEIOSIS ERRORS

Question 1

What technique can reveal a genetic abnormality?

Answer 1

Karyogram

Question 2

What can errors in meiosis result in?

Answer 2

Loss or duplication of chromosomes

Question 3

What is the term that causes loss or duplication of chromosomes?

Answer 3

Non disjunction

Question 4

What is non disjunction?

Answer 4

Homologous chromosomes or sister chromatids fail to separate during meiosis I or II

Question 5

What can a translocation lead to?

Answer 5

Parents with balanced translocations can produce children with trisomy or monosomies

Question 6

What is the term for a person with a normal set of chromosomes?

Answer 6

Euploidy

Question 7

What is the term for a person with an error in chromosome numbers?

Answer 7

Anueploidy

Question 8

In meiosis I, how many cells have an extra copy of chromosomes?

Answer 8

Two

Question 9

In meiosis I, how many cells have a loss of chromosomes?

Answer 9

Two

Question 10

In meiosis II, what are the results from disjunction?

Answer 10

Two normal cells, one cell with too many chromosomes and one with too few

Question 11

What are the disorders that result from disjunction?

Answer 11

Down syndrome
Turners syndrome