A transgenic crop is created by _____
a. artificial selection
b. selective breeding
c. transfer of a genetic trait from a different species into the plant’s cells
d. culturing adult stem cells
e. cutting DNA with restriction enzymes and separating the DNA fragments by size
c
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When Mendel crossed purple-flowered pea plants with white-flowered pea plants, he never got offspring with flowers that had an intermediate color. This was counter to the theory of
A. independent assortment. B. blending inheritance. C. direct transmission of traits. D. segregation of alleles. E. continuous variation of traits.
During the process of decomposition, carbon quality typically declines
Indicate whether the statement is true or false
Which cellular component of blood helps in clotting?
A) red blood cells B) white blood cells C) plasma D) platelets
It is believed that a nucleotide change from T to C in the gene encoding a green pigment protein is responsible for certain cases of color blindness. In order to test that a mutation in this gene is responsible for color blindness, you would want to
A. run gel electrophoresis to ensure it is the right gene. B. carry out knockout analysis to observe what happens in mice when the gene is not expressed. C. perform a Southern blot to account for the C to T change in the sequence. D. perform plasmid transformation of the DNA into a vector and observe changes in bacteria.