When constructing a genetic map of Zea mays, Creighton and McClintock used genetic markers as well as structural differences in the homologous copies of chromosome 9 that can be seen under the microscope

What are these structural differences called?


cytological markers

Biology & Microbiology

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The difference between benign and malignant tumors is that

A) benign tumors have not lost growth control. B) benign tumors do not stimulate angiogenesis. C) benign tumors have not spread to other sites. D) malignant tumors are adherent. E) benign tumors are cancers, while malignant tumors are not.

Biology & Microbiology

Sympatric populations are able to coexist without competing for resources due to morphological differences known as

____.

a. niches b. character displacements c. resource partitions d. mimics e. parasitoids

Biology & Microbiology

Body mass index (BMI) is calculated from what factors?

A) muscle density and weight B) age, weight and height C) fat density and age D) weight and height

Biology & Microbiology

Fuels such as gasoline are nonpolar and have high potential energy because they are largely composed of

A. hydrocarbons. B. alcohols. C. carboxylic acids. D. amines. E. sulfates.

Biology & Microbiology