A heterozygous individual has a _____ for a trait being studied
a. pair of identical alleles
b. pair of nonidentical alleles
c. haploid condition, in genetic terms
B
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Bacteria and yeast both replicate asexually and produce copies of themselves. What is this called in biotechnology?
a. molecular cloning b. meiosis c. cellular cloning d. reproductive cloning
The Cholodny-Went hypothesis has been proposed to explain how plants bend toward a directional light source. What does this hypothesis suggest?
A. Plants use phototropins to receive a blue-light signal. B. The tip of the plant shoot is important for bending. C. Auxin is produced in cells in response to light and causes bending. D. Asymmetric auxin distribution causes differential cell elongation that causes bending.
The adult nematode worm Caenorhabditis elegans consists of _______ somatic cells
a. 95 b. 959 c. 9,590 d. 95,900
The two main functions of the lymphatic system are
A) coagulating blood and fighting infections. B) producing hormones that regulate the immune system and coagulating blood. C) producing hormones that regulate the immune system and fighting infections. D) returning tissue fluid to the circulatory system and fighting infections.