Which of the Following Is Improperly Paired

question 145

Multiple Choice

Which of the following is improperly paired?

• A)falx cerebri - a fold of dura mater between the cerebral hemispheres
• B)septum pellucidum - a thin partition that separates the two lateral ventricles
• C)corpus callosum - thick tract of gray matter that connects the two cerebral hemispheres
• D)interventricular foramen - the opening between the lateral ventricles and the third ventricle
• E)cerebral aqueduct - slender canal that connects the third and fourth ventricle

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Definitions:

Crossing-Over

Exchange of segments between non-sister chromatids of a bivalent during meiosis.

Chromatids

One of two identical halves of a duplicated chromosome, joined together by a centromere and separated during cell division.

Genetic Material

The molecules responsible for heredity and variation of organisms, primarily DNA or RNA in viruses.

Homologous Chromosomes

Pairs of chromosomes in a diploid organism that are similar in shape, size, and gene content, one inherited from each parent.