What Is the Function of the Cos Sites in the

question 23

Multiple Choice

What is the function of the cos sites in the λ phage genome?

• A) They function as the origin of DNA replication
• B) They bind to the cI repressor
• C) They bind to the N antiterminator
• D) They circularize the genome
• E) They are the sites of integration with the host chromosome

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Definitions:

Chorion

The outermost fetal membrane in mammals, including humans, contributing to the formation of the placenta.

Ectopic Pregnancy

A pregnancy in which the fertilized egg implants outside the uterus, often in the fallopian tube, and is non-viable.

Embryo Transfer

A step in assisted reproduction where an embryo is placed into the uterus of a female with the intent of establishing a pregnancy.

Preembryonic Development

The earliest phase of human development, from fertilization to the formation of the embryonic disc, which is before the actual embryo begins to form.