Chimpanzees,gorillas,and Orangutans Have DNA Sequences That Are Almost Identical to Those

question 67

Multiple Choice

Chimpanzees,gorillas,and orangutans have DNA sequences that are almost identical to those of humans; however,these genes are found on 24 pairs of chromosomes in apes,while humans have 23 pairs.The C2 chromosome in humans is a large chromosome with similar banding pattern and DNA sequences to two smaller chromosomes in apes (C2 and C4) .In addition it appears to have both a vestigial second centromere and telomere sequences in the middle of the strand.
-Why do,in general,do only female cats have the tortoiseshell phenotype?

• A)a male inherits only one allele of the X-linked gene controlling hair color
• B)the Y chromosome has a gene blocking orange coloration
• C)only males can have Barr bodies
• D)multiple crossovers on the Y chromosome prevent orange pigment production
• E)two tortoiseshell genes located on the X chromosome are required

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Definitions:

Barter

The direct exchange of goods and services between parties without the use of money.

Electronic Entries

Transactions or records created and stored in digital form, often used in banking and bookkeeping.

Absence

The state of something being not present or lacking.

Double Coincidence

A condition in barter systems where two parties each possess an item the other wants, facilitating a direct exchange without the need for a common currency.