Exam 1 Review

What is the ploidy number of this organism in N-notation?

• 2n=7

• 2n=14

• n=14

• Hemiploid

The multiple effects of a single gene on the phenotype of an organism is called _____.

• Epistasis

• Overdominance

• Penetrance

• Pleiotropy

• Expressivity

A karyotype is a(n):

• organized representation of the chromosomes within a cell

• organelle of eukaryotic cells

• division of the cytoplasmic reticulum following mitosis

• stage of prophase I in meiosis

• protein complex bound to the centromere of an individual chromosome

Which gene is found in between the genes f and g?

• b and e

• d

• c

• a

• none of the above

Tags

NGSS.HS-LS3-1

Which two genes are found on opposite ends of the same linkage group?

• e and c

• f and d

• a and g

• f and c

• e and a

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What stage of cell division is depicted in C?

• S-phase

• Prophase

• Prophase I

• Interphase

• Prophase II

Tags

NGSS.HS-LS1-4

When performing linkage analysis, a testcross is always performed between the individual who is heterozygous for the gene to be mapped and an individual who is_____.

• heterozygous for the genes

• homozygous recessive for the genes

• homozygous dominant for the genes

• lacking the genes

The product of Mitosis is four genetically different daughter cells.

• True

• False

Tags

NGSS.HS-LS1-4

Suppose that extra fingers and toes are caused by a recessive trait but only appears in 25% of the homozygous recessive individuals. If two heterozygotes conceive a child, what is the probability that this child will have extra fingers?

• 1/8

• 1/4

• 1/16

• 1/2

• 1/3

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A ____ translocation represents when a piece of one chromosome is attached to another chromosome.

• balanced

• simple

• reciprocal

• complex