Enzymatic reactions can be controlled by
a. the amount of substrates available.
b. the concentration of products.
c. activation of enzymes.
d. inhibition of enzymes.
e. all of these.
Answer: e
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In goats, the gene for coat color is on an autosome and light brown color is dominant to black. A light brown male is mated to a black female, producing a black kid (baby goat). If they produce another kid, could it be light brown? If so, what are the chances of it being light brown?
A. No, since the black allele is present all offspring will be black B. Yes, 100% since the first kid was black the next one has to be light brown C. Yes, 75% since light brown is dominant D. Yes, 50% as the male must be heterozygous for color E. Yes, but it will depend on whether the kid is male or female
When guard cells are filled with water, ____
a. stomata are open b. stomata are closed c. sugars diffuse into the sieve tube members d. gases cannot diffuse into the plant e. gases cannot diffuse out of the plant
Identify the contribution of Walter Sutton and Theodore Boveri to the science of genetics and explain its importance. What will be an ideal response?
Which of the following would not be true of bilateral symmetry?
a. It evolved in cephalic organisms. b. It evolved in cnidarians. c. Animals with bilateral symmetry have oral and aboral surfaces. d. It results from schizocoelous development. e. It occurs in diploblastic organisms.