AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

CLONING GENES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In cloning, what is the purpose of the surrogate mother?
A
Donate her DNA
B
Donate her egg cell
C
Incubate and carry the baby until birth
D
Nothing. She’s useless.
Explanation: 

Detailed explanation-1: -In contrast to research cloning, cloning for reproductive purposes does not include the interruption of the development of an embryo after a short time. Instead, the embryo is transferred into the uterus of a hormonally prepared surrogate mother that will then carry the pregnancy to term similar to a normal pregnancy.

Detailed explanation-2: -Does a surrogate mother transfer DNA to the baby? Some women worry that, even with an intended mother’s or donor’s egg, there could be a transfer of DNA. This is a totally natural assumption to make. However, the truth is that there is no transfer of DNA during pregnancy in a gestational surrogacy.

Detailed explanation-3: -A surrogate, sometimes also called a gestational carrier, is a woman who conceives, carries and gives birth to a child for another person or couple (intended parent/s). The surrogate agrees to give the child to that person or couple after the birth.

Detailed explanation-4: -Surrogacy is an arrangement where a person carries and gives birth to a baby for another person, for example, a couple who can’t be pregnant themselves. In Australia, most commonly the surrogate is not biologically related to the baby. An embryo from the intended parent(s) and/or donor(s) is used.

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