A single chromosome has Select one:
a. a single gene with a single allele.
b. multiple genes, each with multiple alleles.
c. a single gene with multiple alleles.
d. multiple genes, each with a single allele.
d. multiple genes, each with a single allele.
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Except for the regions at its tips where it is homologous to the X chromosome, genes on the Y chromosome:
A. are completely linked. B. are mostly completely linked, but a few exhibit independent assortment. C. are mostly completely linked, but a few exhibit random segregation. D. may or may not be linked; it just depends on how far apart they are from one another. E. may or may not be linked; it just depends on the individual alleles of the gene.
The atmospheric pressure on top of Mt. Everest is only about 238 mmHg, so the approximate partial pressure of oxygen there is
A. 2.4 mmHg. B. 50 mmHg. C. 186 mmHg. D. 238 mmHg. E. 476 mmHg.
During anaerobic decomposition of organic matter with carbon dioxide as the terminal electron acceptor, the primary gas(es) produced is/are
A. oxygen. B. hydrogen sulfide. C. methane. D. hydrogen. E. methane AND hydrogen.
There are three alleles controlling the ABO blood types. IA and IB are codominant genes so that the
combination IAIB produces the AB blood type. The third allele, IO, is recessive to the other two alleles. Indicate which of these parents could produce the given child:Parents Child Yes or No (a) A ? AB B (b) A ? O A (c) A ? B O (d) A ? AB O (e) A ? AB B (f) B ? B O Observing Patterns in Inherited Traits 115 (g) AB ? AB A What will be an ideal response?