In Humans, Identical Twins Are Possible Because

question 59

Multiple Choice

In humans, identical twins are possible because

• A) cytoplasmic determinants are distributed unevenly in unfertilized eggs.
• B) extraembryonic cells interact with the zygote nucleus.
• C) convergent extension occurs.
• D) early blastomeres can form a complete embryo if isolated.
• E) the gray crescent divides the dorsal-ventral axis into new cells.

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Definitions:

Separate-But-Equal

A doctrine which held that segregated facilities for different races were permissible provided they were equal.

Supreme Court

The highest judicial court in a country or state, having the authority to adjudicate appeals on significant matters.

1954

A year marked by significant historical events, such as the Brown v. Board of Education Supreme Court decision that declared state laws establishing separate public schools for black and white students to be unconstitutional.

Network Therapy

A therapeutic approach involving a network of significant others in the treatment process to support a client's recovery.