Which uses synthetic DNA plus DNA cloning techniques to introduce nucleotide changes at specific sites?

a. artificial chromosome synthesis
b. ligation
c. oligonucleotide replacement
d. site-directed mutagenesis


Answer: D

Biology & Microbiology

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Certain Clostridium spp. can be found in the human gut, but Clostridium tetani is almost exclusively present in soil

Indicate whether the statement is true or false.

Biology & Microbiology

Explain how bone remodeling can have both positive and negative consequences for an individual

What will be an ideal response?

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All of the following statements regarding fetal nutrition and size are true, EXCEPT

A. Fetuses with Intrauterine Growth Restriction (IUGR) are insulin-resistant, saving glucose for the brain since the brain does not have insulin-dependent glucose transporters. B. Obesogenic environments include those where the nutrition may be described as the Typical Western Diet, and they promote adult Type II Diabetes later in life for IUGR babies. C. Macrosomia is associated with gestational diabetes and premature birth. D. Poor uteroplacental and fetoplacental blood flow is associated with IUGR. E. Twinning has no effect on individual fetal nutrition delivery.

Biology & Microbiology

The __________ is a prime mover of the glenohumeral joint during flexion.

a. teres major b. coracobrachialis c. deltoid d. biceps brachii

Biology & Microbiology