Most people born with recessive disorders are born to parents who are both _________ or carriers for the recessive allele.
Fill in the blank(s) with the appropriate word(s).
Ans: Heterozygous
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Which of the following is(are) an organism’s niche?
a. living and environmental factors b. its general ecological role c. the organism’s relationship with other living organisms d. All of these constitute part of an organism’s niche
Water flowing inward through the endodermis moves next into the pericycle. Indicate whether the statement is true or false
If a mammal suffered damage to the temperature sensor in its brain, what would be the result?
A. The animal would fall back onto a more primitive ectothermic mode of regulation. B. Only the integumentary system is required to sense temperature changes. Body temperature would remain stable. C. The animal would have to rely on shivering instead of vasoconstriction to maintain body heat. D. The integrating center would not receive inputs to compare to the set point. Body temperature could rise or fall to dangerous levels.
Which of the following statements regarding ELISAs is TRUE?
A) They are not quantitative. B) They require large amounts of serum. C) The antibody label is a fluorescent molecule. D) They can be used to detect antibody or antigen. E) They involve the use of membrane filters.