To Make Recombinant DNA

question 31

Multiple Choice

To make recombinant DNA,

• A) two nonhomologous chromosomes are induced to undergo crossing-over during meiosis.
• B) the entire genome of one organism is fused to a plasmid.
• C) pieces of DNA from different organisms are cut with restriction enzymes and then joined together.
• D) DNA polymerase is used to make multiple copies of the DNA sequences of two organisms at the same time.

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Definitions:

Fertilization

The process in which a sperm cell unites with an egg cell to form a zygote.

Polyspermy

The fertilization of an egg by more than one sperm, which can lead to developmental abnormalities.

Germ Layers

Germ layers are the three primary layers of cells (ectoderm, mesoderm, and endoderm) in the early embryo that give rise to all the tissues and organs of the body during development.

Amniotic Cavity

The fluid-filled space within the amniotic sac, surrounding and protecting the developing fetus during pregnancy.