Course

Genetics

Study Pack

Set 8 Chromosome Variation

Back to Sets
Question 1

(Multiple Choice)

Free
Which type of chromosome has a centromere displaced toward one end, creating a long arm and a short arm?

A) acrocentric
B) metacentric
C) paracentric
D) submetacentric
E) telocentric

Answer

Question 2

(Multiple Choice)

Free
How is colchicine, the chemical used in preparing karyotypes, useful for studying chromosomal mutations?

A) Colchicine prevents cells from entering anaphase, stalling them in metaphase with condensed chromosomes.
B) Colchicine induces chromosome condensation during interphase, which allows the visualization of interphase chromosomes.
C) Colchicine causes chromosomal breakage, leading to inversions and translocations that can be observed with a microscope.
D) Colchicine ruptures the cell membrane, allowing the spreading of cells on microscope slides.
E) Colchicine causes cells to exit the cell cycle, making the chromosome easier to visualize.

Answer

Question 3

(Multiple Choice)

Free
What typically happens to the small fragment generated by a Robertsonian translocation?

A) The small fragment duplicates continuously.
B) The small fragment remains stable.
C) The small fragment often gets lost.
D) The small fragment pairs up with its homologous chromosome.
E) The small fragment tends to recombine back to a larger chromosome.

Answer