Asexual reproduction in fungi can be accomplished by
A. budding of somatic vegetative cells.
B. binary fission.
C. hyphal fragmentation.
D. All of the choices are correct.
Answer: D
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If a homozygous dominant long-haired dog is
crossed with a homozygous recessive shorthaired dog, what will be the phenotype of the offspring?
a. all heterozygous b. half homozygous dominant and half homozygous recessive c. all red d. half red and half white e. more than one of these
Carbonic anhydrase (CA), an enzyme widely present in plant and animal tissues, catalyzes the reaction: This reaction is important for the maintenance of acid base balance in blood and other tissues and to help transport CO2 out of tissues; without a catalyst, this reaction would not occur at rates that could maintain homeostasis. In the figure below, which line(s) represents the reaction catalyzed by carbonic anhydrase?
A. Line B; the activation energy has been lowered B. Line A; more energy is supplied C. Lines A and B; product is shown for both lines D. Line A; the activation energy increased E. Either, as the free energy is the same for both
Which statement about fruit fly development is false?
A) One of the earliest development events is the determination of the head and tail ends of the egg. B) The location of the head and tail ends of the egg is primarily determined by the location of sperm entry during fertilization. C) Homeotic genes regulate batteries of other genes that direct the anatomical identity of body parts. D) Cascades of gene expression routinely direct fruit fly development.
____ and ____ help hold cells together
Fill in the blank(s) with the appropriate word(s).