What accounts for the different breeds of domesticated dogs?

A) overproduction
B) natural selection
C) competition
D) artificial selection


D

Biology & Microbiology

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The primary pigment molecule needed for photosynthesis is

A. carotenoid. B. chlorophyll b. C. glucose. D. carbon dioxide. E. chlorophyll a.

Biology & Microbiology

Below is a diagram of DNA replication as currently believed to occur in E. coli. Arrows start from numbers and end at specific points. Answer the questions relating to the locations specified by the numbers

(1 ) Which end (5' or 3') of the molecule is here? (2 ) Which enzyme is probably functioning here to deal with supercoils in the DNA? (3 ) Which enzyme is probably functioning here to unwind the DNA? (4 ) Which nucleic acid is probably depicted here? (5 ) What are these short DNA fragments usually called? (6 ) Which enzyme probably functions here to couple these two newly synthesized fragments of DNA? (7 ) Is this strand the leading or lagging strand? (8 ) Which end (5' or 3') of the molecule is here?

Biology & Microbiology

The outer ear and epiglottis have a small amount of flexibility associated with them because of the presence of ________ cartilage

Fill in the blank(s) with correct word

Biology & Microbiology

During regulation by attenuation in the trp operon, if the pause and terminator loops form in mRNA, transcription is uncoupled to translation and protein synthesis is not occurring.

Answer the following statement true (T) or false (F)

Biology & Microbiology