If you, like Mendel, grow plants in the lab, and cross short (tt) pea plants with short pea plants, the offspring will be
A. all tall.
B. all short.
C. nonexistent.
D. a mix of tall and short.
E. None of the answer choices is correct.
B. all short.
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According to the modern synthesis, macroevolution results from ____
a. abrupt changes in a species environment b. the chance appearance of “hopeful monsters” c. changes in genes that occur in spurts d. abrupt changes in an individual’s genetic make-up e. the gradual accumulation of microevolutionary changes
What is a dense cluster of capillaries that sits within the cuplike Bowman's capsule of a nephron?
A. Glomerulus B. Urethra C. Peritubular capillaries D. Proximal tubule E. Loop of Henle
This phylogeny shows the relationships among 53 modern humans based on mitochondrial DNA. How does this phylogeny support the out-of-Africa hypothesis?
What will be an ideal response?
Protist reproduction
A. is only asexual by binary fission. B. is most commonly sexual by meiosis. C. is most commonly asexual by mitosis. D. is only sexual by mitosis.