Skin color and height are inherited by
A. polygenic inheritance.
B. lack of dominance.
C. multiple alleles.
D. pleiotropy.
A. polygenic inheritance.
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Which cells display digested viral cell fragments on their surface?
a. dendritic cells b. helper T cells c. cytotoxic T cells d. memory T cells e. B cells
Correlation may be considered proof of a causative relationship between two variables
a. true b. false
Which sentence best describes the relationship between gametophyte and sporophyte in flowering plants?
a. The gametophytes are smaller than the sporophytes, and are retained inside sporophyte for all or part of their lives. b. The gametophytes are smaller than the sporophytes, and do not nourish themselves. c. The gametophytes and sporophytes are roughly equal in size, and both nourish themselves. d. The gametophytes are usually larger than the sporophytes, but both gametophytes and sporophytes nourish themselves.
The substances that participate in a reaction are called __________________, whereas the substances that form as a result of a reaction are _____________________
Fill in the blank(s) with the appropriate word(s).