The major difference between the human male and female reproductive systems is the
a. provision of a site for fertilization and embryo development in the female.
b. production of haploid gametes only by the male.
c. diploid polar bodies of the female.
d. generation of millions of eggs but only thousands of sperm each month.
e. presence of a duct system opening to the body's exterior only in females.
A
You might also like to view...
Which of the following is not true with regard to compacting nucleic acids?
A. Some viral coat proteins are RNA-binding proteins that compact the RNA genome of the virus. B. There are enzymes that introduce and maintain coiling of double-stranded DNA molecules. C. There are DNA-binding proteins that maintain structural organization in eukaryotes. D. There are DNA-binding proteins that maintain structural organization in bacteria. E. Single-stranded RNA viruses compact their genomes by packaging complementary RNA.
(A)_________ quantifies hydrogen atoms that are excited by magnetic wave. The principle of this imaging technique is also applied in (B)_____________.
a. (A) Magnetic Resonance Imaging (MRI), (B) Positron Emission Tomography (PET) b. (A) Magnetic Resonance Imaging (MRI), (B) Diffusion Tensor Imaging (DTI) c. (A) Diffusion Tensor Imaging (DTI), (B) Computed Tomography (CT) d. (A) Diffusion Tensor Imaging (DTI), (B) electroencephalography (EEG)
An increase in which of the following would result in an increase in transpiration?
1) wind 2) temperature 3) light 4) all of the above
In the Gram-staining procedure, the decolorizer is ________.
A. ethanol or acetone B. iodine C. crystal violet D. safranin