To determine the genotype of an individual who expresses a dominant trait, you would cross that individual with an individual who ______.
A. expresses the dominant trait
B. is homozygous dominant for that trait
C. is homozygous recessive for that trait
D. is heterozygous for that trait
C. is homozygous recessive for that trait
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Golden rice was genetically engineered to
a. produce vitamin B12. b. produce vitamin A. c. bind minute gold molecules. d. grow twice as fast as normal rice. e. do all of these.
What regulates blood flow through a capillary bed?
a. arteriole flow b. venule flow c. heart rate d. precapillary sphincter status e. amount of salt in the blood
These white blood cells are especially effective
at killing bacteria and will actually explode their contents creating a net that traps and kills pathogens. These white blood cells are
a. neutrophils. b. macrophages. c. B lymphocytes. d. dendritic cells. e. eosinophils.
Four of the five events listed below are related by a
common phase of mitosis. Select the exception. a. chromosomes align at the spindle equator b. sister chromatids become individual chromosomes c. microtubules shrink at both poles d. motor proteins drag chromosomes to the poles e. spindle poles are pushed farther apart