Which of the following processes generates a continuum (spectrum) of varying phenotypes?
A) Pleiotropy
B) Polygenic inheritance
C) Epistasis
D) Single-gene traits
B
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In the above figure, which letter points to the corpus luteum?
A) A B) B C) C D) D E) E
An unknown organism from an alien planet is observed and found to have a diploid state only
following fertilization. Meiosis follows and the majority of this organism's life is spent in a haploid state. Which multicellular organism on earth most closely resembles this type of life cycle strategy?
a. humpback whale b. maple tree c. fern d. some algae e. all plants and some fungi
What is the primary role of a mushroom's underground mycelium?
a) protection b) anchoring c) sexual reproduction d) asexual reproduction e) absorbing nutrients
For a stem that has a vascular cylinder, which sequence of structures is in the correct order, from outside to inside?
a. stele ? epidermis ? pith ? cortex b. epidermis ? cortex ? stele ? pith c. stele ? cortex ? epidermis ? pith d. cortex ? stele ? pith ? epidermis