Chapter 15

Question 1

Genetic recombination

Answer 1

Genetic recombination (also known as genetic reshuffling) is the exchange of genetic material between different organisms which leads to production of offspring with combinations of traits that differ from those found in either parent.

Question 2

Parental types

Answer 2

Matching offspring

Question 3

Nondisjunction

Answer 3

Members of a pair of homologous chromosomes don’t split during meiosis

Question 4

Aneuploidy

Answer 4

Zygote has an abnormal number of a particular chromosome

Question 5

Monosomic

Answer 5

Monosomy is the state of having a single copy of a chromosome pair instead of the usual two copies found in diploid cells

Question 6

Trisomic

Answer 6

3 chromosomes

Question 7

Polyploidy

Answer 7

Polyploidy, the condition in which a normally diploid cell or organism acquires one or more additional sets of chromosomes.

Question 8

Deletion

Answer 8

A chromosomal fragment is lost

Question 9

Duplication

Answer 9

When a broken fragment is reattached as an extra segment to a sister or non sister chromatid

Question 10

Inversion

Answer 10

Fragment may reattach to original chromosome but in reverse orientation

Question 11

Translocation

Answer 11

Fragment to join a non homologous chromosome