From what is a karyotype made?

a. a Punnett square
b. a series of X-ray diffraction images
c. a preparation of gametes on a microscope slide
d. a photograph of cells in mitosis


Ans: d. a photograph of cells in mitosis

Biology & Microbiology

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Describe how you have applied or could apply the scientific method to an everyday problem.

What will be an ideal response?

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During root nodule development rhizobia penetrate into root cortex cells. Next, proteins called __________ cause root cortex cells to divide, forming nodules.

A. Nod factors B. Flavonoids C. Nodulins D. Leghemoglobin E. Bacteroids

Biology & Microbiology

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a. a single gene duplication event b. repeated cycles of gene duplication followed by mutation

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Biology & Microbiology

Before Darwin

a. no one had conceived of biological evolution b. Lamarck wrote about biological evolution, but had the mechanism wrong. c. Malthus developed a theory of evolution. d. Lamarck had the idea of natural selection, but was ignored. e. Malthus demonstrated the progression of fossils in the rocks.

Biology & Microbiology