Which recent technology has allowed women the option of reproducing later in life, either by choice or because of a
medical condition that may prevent them from conceiving later?
a. artificial insemination
b. asexual fertilization
c. surrogate transfer
d. egg freezing and banking
e. fertility drugs
ANSWER: d
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Maintenance of the uterine lining during pregnancy in mammals requires
A. estradiol. B. testosterone. C. FSH. D. LH. E. progesterone.
Climate is the ____
a. average weather conditions an area receives over a short interval b. average weather conditions an area receives over a long interval c. annual amount of sunlight an area receives
d. annual amount of rainfall an area receives e. annual amount of total precipitation that occurs in an area
A disulfide bond is formed between _______ residues.
a. cysteine b. glycine c. methionine d. tyrosine
Which of the following statements regarding DNA is false?
A) DNA contains the sugar deoxyribose. B) DNA contains the nitrogenous base uracil. C) One DNA molecule can include four different nucleotides in its structure. D) DNA molecules have a sugar-phosphate backbone.