Which one of the following is a characteristic of asexual, as opposed to sexual, reproduction?
a. fusion of egg and sperm
b. a cell splitting in half
c. genes contributed by two parents
d. high degree of genetic variation
e. formation of a fertilized egg
B
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The myosin found in muscle has a long tail as can be seen in the following figure. (See Figure 10.10) What is the most likely outcome if this tail were missing?
A. Myosin would not change conformation. B. Myosin would not bind ATP. C. Myosin would not bind the actin. D. The muscle would not contract.
Which of the following is NOT a desirable characteristic of a model organism used to study development?
A. short generation time B. small size C. large oocytes D. produces many offspring E. large genome
Specialized symbiotic associations between the roots of plants and fungi are called
A. a mycelial unit. B. heterokaryotic junctions. C. lichens. D. hyphal associations. E. mycorrhizae.
The reaction below represents a ____ reaction.
A. dehydration synthesis
B. hydrolysis
C. unbalanced
D. equilibrium