Ascomycetes are the largest group of fungi. When their haploid hyphae fuse without fusion of their nuclei, the resulting cells are
A. asexual.
B. haploid.
C. asci.
D. diploid.
E. dikaryotic.
E. dikaryotic.
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Which of the following is true of incomplete penetrance?
A. Environmental factors do not influence penetrance. B. Incomplete penetrance implies that some individuals will experience less severe forms of disease such as cancer or Alzheimer's. C. Gene interactions have been shown to result in incomplete penetrance in some cases. D. Incomplete penetrance refers to cases in which individuals developing a particular disease (e.g., cancer or Alzheimer's) lack the typical genotype for this disease.
Low intensity, long duration exercise results in ____
a. decreased capillary growth b. decreased number of mitochondria c. increased white fibers d. increased amounts of myoglobin e. no change in muscles
Mendel called a masking trait
a) dominant. b) recessive. c) homologous. d) homozygous. e) heterozygous.
Select the following phylum that includes protostome animals that are segmented, bilaterally symmetric, and have a chitinous exoskeleton.
A. Platyhelminthes B. Brachiopoda C. Annelida D. Arthropoda E. Mollusca