1. a mutation that causes changes in the amino acid sequence downstream of the mutation is called
a point mutation.
a translocation mutation.
a substitution mutation.
a frameshift mutation.
2. what will be the outcome of deletion of the third base, a, from the dna sequence below? assume that the first base corresponds to the start of a codon. (1 pt) (original)
-c-c-a-a-a-t-a-a-a-g-
the first amino acid in this sequence does not change.
a frameshift mutation occurs.
gly-leu-phe is changed to gly-tyr-phe.
all of the above are correct.

Which is required for sexual fissiondiploid cell productionmeiosis

You have been asked to lead a demonstration for the undergraduate microbiology lab course about the uses of negative staining when studying bacteria. a "negative" stain does not stain the bacterial cell itself but stains the space between cells. under magnification, the acidic (negativelycharged) nature of the stain will be repelled by the negatively charged bacterial cell wall and willleave the cell colorless in a stained background. negative stains are used primarily to reveal the presence of negatively charged bacterial capsules; therefore, they are also called capsule stains. encapsulated cells appear to have a halo surrounding them. the negative stain procedure does not require heat fixation, which limits any chances of alteration in bacterial cell shape and size. the bacterial suspension is added to a drop of stain, such as nigrosin or eosin, and drawn across the glass slide using a coverslip.nigrosin staining-not safranin staining-of klebsiella pneumoniae will allow for the visualization of the cell shape and the determination of the presence of a capsule.true/false

What are some possible short and long term medical concerns for crew members on longer space exploration trips