Lead can accumulate in which part of the body
a. blood
b. muscles
c. bones
d. all of the above
Ans: d. all of the above
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Repeating DNA regions of at least 1000 base pairs known as ____________________ can affect gene expression
Fill in the blank(s) with correct word
Which of the following is not exhibited by a polygamous mating system?
A. The male will kill offspring if they interfere with mating. B. The females provide care for their offspring. C. The male mates with numerous females. D. The females provide food for their offspring. E. The male defends vulnerable offspring.
Which of the following represent antiphagocytic strategies used by some pathogens?
a. avoiding destruction inside phagocyte b. Secretion of hyaluronidase c. secretion of leukocidins d. secretion of capsule/slime layer e. attachment with fimbriae
Which of these statements concerning the centromere is NOT true?
A) It anchors proteins to DNA. B) It is temporary. C) It is the attachment site for microtubules. D) It appears to join duplicated DNAs. E) Its position along the chromosome varies.