Humans have ________ pairs of homologous chromosomes.
a. 46
b. 23
c. 22
d. 44
b. 23
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The serine pathway and ribulose monophosphate pathway can both be used by ________ as a way to incorporate carbon into biomass
A) acetogens B) anoxygenic hydrocarbon fermenters C) methanogens D) methylotrophs
True or false:
_____ The nervous systems of all animals are organized into peripheral and central components. _____ The PNS consists only of sensory neurons. _____ All neurons have either a sensory or motor function. _____ All neuronal cell bodies are either in the brain or spinal cord. _____ All nervous system responses involve input from the brain. _____ The organization of the human nervous system is completely different from that of other vertebrates. What will be an ideal response?
________ is an unusual base found in the DNA of T4 phages.
What will be an ideal response?
A small part of the human Y chromosome contains the gene that is responsible for determining maleness. What is the name of this gene?
A) NRY B) Xist C) SRY D) medulla E) Dax