A carpel is the
(a) same as a megasporophyll.
(b) structure producing pollen grains.
(c) component making up the anther.
(d) synonym for microsporophyll.
(a) same as a megasporophyll.
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The embedded peptides in MHC proteins are normally derived from breakdown products of cell metabolism
Indicate whether the statement is true or false.
A single nucleotide polymorphism, or SNP, results from a mutation that causes changes to just a single base pair of DNA. Which one of the following statements is true about SNPs?
A. SNPs can be associated with certain diseases, such as Parkinson's disease. B. SNPs can be associated with certain physical traits, such as baldness. C. SNPs can reveal a person's ancestry. D. SNPs can be detected by DNA microarrays. E. All of the answer options are true about SNPs.
Most plants would grow best in a soil with ____
a. very small air spaces b. relatively large air spaces c. air spaces filled almost entirely with water d. various sizes of air spaces e. no air spaces
Which sentence characterizes cancer cells?
a. Tumours formed by cancer cells remain encapsulated and grow in only one location. b. Cancer cells form tumours that strongly adhere to surrounding tissues. c. Cancer cells display uncontrolled cell division. d. Mitosis is strictly regulated in cancer cells.