In humans, the male determines the sex of the child because males have
A) one X and one Y chromosome. B) two X chromosomes.
C) 46 chromosomes. D) two Y chromosomes.
A
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When sodium chloride is dissolved in water, it dissociates to form ______ ______ and ______ ______.
Fill in the blank(s) with the appropriate word(s).
Consider two loci (A, B) each with two alleles (A, a; B, b). The frequency of A is known to be = 0.3, the frequency of b is known to be = 0.25 and the value of linkage disequilib-rium between loci A and B is known to be = 0.15
What is the expected haplotype frequency of haB? Please show your work. What will be an ideal response?
A mixture of vegetable oil and water will separate into layers because oil is ____ and forms ____
a. hydrophobic; nonpolar associations b. hydrophilic; nonpolar associations c. hydrophilic; polar associations d. hydrophobic; polar associations e. hydrophobic; ionic associations
A type of tissue has tight junctions, a basement
membrane, no blood supply, and is one layer thick. This tissue type is
a. stratified epithelium. b. simple epithelium. c. connective. d. muscle. e. nervous