Alternate forms of the same gene are called  

A.  homologues.
B.  genotypes.
C.  cofactors.
D.  alleles.


D.  alleles.

Biology & Microbiology

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Interacting systems of molecules enclosed in compartments called __________ evolved 3.8 billion years ago in living organisms.

A. cells B. organs C. microspheres D. tissues

Biology & Microbiology

Figure 11.2 In the depiction of the cell cycle in the figure above, what does step 2 represent?

A. A pair of homologous chromosomes in G1 B. Two chromosomes in anaphase C. A pair of duplicated homologous chromosomes after G1 D. The entire genome of the organism E. A chromosome in telophase

Biology & Microbiology

Which of the following statements is not consistent with Darwin's theory of natural selection?

A) Individuals in a population exhibit variations, some of which are passed from parents to offspring. B) Individual organisms experience genetic change during their life spans to better fit their environment. C) Factors in the environment result in some organisms having better reproductive success than others. D) Natural selection can lead to the appearance of new species.

Biology & Microbiology

what scientist proved biogenesis and helped develop the Germ Theory of Disease as well as a process to help extend the shelf life of beer and wine (now known more for milk)

What will be an ideal response?

Biology & Microbiology