In which of the following processes do the chromosome and its homologous partner exchange corresponding pieces of DNA?
A. Crossing over
B. Gametes
C. Alleles
D. Haploid
E. Germ cell
Answer: A
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When X-linked traits are recessive,
A. males who express the trait receive the recessive allele from their mothers. B. males who express the trait receive the recessive allele from their fathers. C. males who express the trait must receive recessive alleles from both parents. D. males who express the trait carry the recessive allele on their X chromosome. E. males who express the trait receive the recessive allele from their mothers and carry the recessive allele on their X chromosomes.
A malignant tumor differs from an in situ tumor in that the malignant tumor has invaded the surrounding tissue and compromised the function of that tissue, whereas an in situ tumor has not compromised the surrounding tissue or spread from its
original location. Indicate whether the statement is true or false
In mollusks, the folds of tissue that arise from the dorsal body wall and enclose a cavity surrounding the visceral mass are called the
A. lophophore. B. foot. C. nephridia. D. mantle. E. radula.
Budding release of virus may result in long lasting or persistent infection
Indicate whether the statement is true or false