The term gymnosperm literally means
A. naked ovule.
B. clothed ovule.
C. naked seed.
D. clothed sperm.
E. clothed seed.
C. naked seed.
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Which tests detect anti-HIV antibodies?
A. ELISA and Western Blot B. PCR and gene probe C. Western Blot and PCRD.
Some multifactorial traits are determined by many interacting genes, each of which may have several alleles. If such a trait is measured in a population, what phenotypic pattern is expected?
A) All individuals will have the same phenotype. B) Two types of individuals will exist, and most will have the dominant phenotype. C) Different individuals will each have one of a few discrete phenotypes. D) The population will have continuous variation in phenotypic expression.
Barnacles are
a. parasites. b. herbivores. c. predators. d. filter feeders. e. all of these.
The tortoiseshell pattern on a cat
A) usually occurs in males. B) is the result of a homozygous recessive condition. C) results from X chromosome inactivation. D) is a result of alleles on the Y chromosome.