How many different types of chromosomes do humans possess?
A. 22
B. 23
C. 24
D. 42
E. 46
C
You might also like to view...
A mutant bacterium is isolated. This bacterial strain has the characteristic of very slow, "sickly" growth. You isolate mRNA from this bacteria to use in an in vitro translation system and note that even in vitro it is difficult to use this message and obtain protein. Of the following, which is a likely explanation for these results?
A) There may be a mutation in the Shine?Delgarno sequence of the DNA, resulting in a RNA that poorly binds the ribosome. B) There may be a mutation in the ribosomal rRNA recognizing the Shine?Delgarno sequence of the message. C) This mutant may have altered tRNA molecules, such that the codon-anticodon interaction during translation is affected. D) These bacteria may not manufacture enough translation factors for effective translation. E) In this mutant, the ribosomal subunits may not associate well enough for effective translation.
The letter "D" in the above figure represents
which teeth? a. incisors b. molars c. canines d. premolars e. none of these
The basic structure of a virus consists of:
a. Genetic information in the form of DNA. b. Genetic information in the form of DNA, a protein coat, and polymerase to replicate its DNA. c. Genetic information in the form of DNA or RNA enclosed within a protein coat, along with a few enzymes. d. Genetic information in the form of RNA, a protein coat, and reverse transcriptase in order to turn its RNA into DNA. e. Genetic information in the form of DNA or RNA enclosed within a protein coat.
In an inverted aquatic biomass pyramid, which organisms are likely found at the bottom?
A. zooplankton B. smelts C. sharks D. phytoplankton E. trout