A diploid individual carrying two different alleles at a given gene locus is called  

A.  homologous.
B.  heterozygous.
C.  homozygous.
D.  polygenic.


B.  heterozygous.

Biology & Microbiology

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Mesophelic crenarchaeotes (Thaumarchaeota) have been isolated ________.

A. from marine plankton B. as symbiotes of sea sponges and sea cucumbers C. as pathogens of whales and giant squid D. from rice paddies and lake sediment

Biology & Microbiology

What is formed when an atom loses or gains an electron?

a. a molecule b. an ion c. a compound d. a mixture e. a solvent

Biology & Microbiology

At zero population growth:a

b = d. b. b > d. c. b < d. d. r > 0. e. r > K.

Biology & Microbiology

Which of the following is the correct sequence of events in protein synthesis? 

A. DNA-tRNA-mRNA-Protein B. mRNA-tRNA-Ribosome-Protein C. DNA-mRNA-tRNA-Ribosome-Protein D. tRNA-mRNA-DNA-Protein

Biology & Microbiology