Chapter 9

Question 1

Metacentric

Answer 1

the centromere is located at approximately in the middle , and so the chromosome has two arms of equal length.

Question 2

Submetacentric

Answer 2

the centromere is displaced toward one end, creating a long arm and short arm

Question 3

Acrocentric

Answer 3

the centromere is near one end, producing a long arm and a knob, or satellite, at the other end.

Question 4

Teloccentric

Answer 4

the centromere is at or very near the end of the chromosome

Question 5

Chromosome rearrangements

Answer 5

are mutations that change the structure of individual chromosomes.

Question 6

Duplications

Answer 6

is a mutation in which part of the chromosome has doubled.

Question 7

Tandem duplication

Answer 7

the duplication region is immediately adjacent to the orginial segment.

Question 8

displaced duplication

Answer 8

duplicated segment is located some distance from the original segment, either on the same chromosome or on a different one,