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Genetics

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Set 3 Extensions To Mendels Laws

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Question 1

(Multiple Choice)

Free
If a geneticist were to closely examine the make-up of a single autosomal chromosome from one of your cells,that chromosome would be found to be

A) derived entirely from genes from just one of your grandparents.
B) a mosaic of genes derived from your mother and father.
C) a mosaic of genes derived from all four of your grandparents.
D) a mosaic of genes derived from just two of your grandparents-either your two grandfathers or your two grandmothers.
E) a mosaic of genes derived from just two of your grandparents-either your maternal grandparents or your paternal grandparents.

Answer

Question 2

(Multiple Choice)

Free
The chromosomal structure to which spindle fibers attach during the mitotic divisions is referred to as a

A) chromatid
B) centrosome
C) kinetochore
D) metaphase plate
E) centromere

Answer

Question 3

(Multiple Choice)

Free
Drosophila melanogaster has four pairs of chromosomes.Sperm from this species are formed by a meiotic process in which homologous chromosomes pair and segregate but do not undergo crossing-over.How many genetically different kinds of sperm could be produced by a Drosophila melanogaster male?

A) 4
B) 8
C) 16
D) 64
E) 256

Answer