Biology 13 Modern Understandings of Inheritance

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Photo depicts Earth from space.
This NASA image is a composite of several satellite-based views of Earth. To make the whole-Earth image, NASA scientists combine observations of different parts of the planet. (credit: NASA/GSFC/NOAA/USGS)

Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.

Unit 3. Genetics

Chapter 13: Modern Understandings of Inheritance MCQ Multiple Choices Questions Quiz Test Bank

13.1 Chromosomal Theory and Genetic Linkage

13.2 Chromosomal Basis of Inherited Disorders

Quiz PDF eBook: 
Biology 13 Modern Understandings of Inheritance
Download Biology 13 Inheritance Quiz PDF eBook
10 Pages
2015
English US
Educational Materials



Sample Questions from the Biology 13 Modern Understandings of Inheritance Quiz

Question: Which recombination frequency corresponds to independent assortment and the absence of linkage?

Choices:

0

0.25

0.50

0.75

Question: Abnormalities in the number of X chromosomes tends to have milder phenotypic effects than the same abnormalities in autosomes because of ________.

Choices:

deletions

nonhomologous recombination

synapsis

X inactivation

Question: X-linked recessive traits in humans (or in Drosophila) are observed ________.

Choices:

in more males than females

in more females than males

in males and females equally

in different distributions depending on the trait

Question: The first suggestion that chromosomes may physically exchange segments came from the microscopic identification of ________.

Choices:

synapsis

sister chromatids

chiasmata

alleles

Question: By definition, a pericentric inversion includes the ________.

Choices:

centromere

chiasma

telomere

synapse

Question: The genotype XXY corresponds to

Choices:

Klinefelter syndrome

Turner syndrome

Triplo-X

Jacob syndrome

Question: Which of the following codes describes position 12 on the long arm of chromosome 13?

Choices:

13p12

13q12

12p13

12q13

Question: In agriculture, polyploid crops (like coffee, strawberries, or bananas) tend to produce ________.

Choices:

more uniformity

more variety

larger yields

smaller yields

Question: Which recombination frequency corresponds to perfect linkage and violates the law of independent assortment?

Choices:

0

0.25

0.50

0.75

Question: Assume a pericentric inversion occurred in one of two homologs prior to meiosis. The other homolog remains normal. During meiosis, what structure-if any-would these homologs assume in order to pair accurately along their lengths?

Choices:

V formation

cruciform

loop

pairing would not be possible

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Source:  OpenStax College. Download for free at http://cnx.org/content/col13448/latest/
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