The starting point for the ovarian cycle is a
a. primary oocyte arrested in meiosis I.
b. primary oocyte arrested in meiosis II.
c. primary oocyte having just completed meiosis I.
d. secondary oocyte arrested in meiosis I.
e. secondary oocyte arrested in meiosis II.
A
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Match the neuron structure on the left with its function or property on the right.
A) concentrated in regions of electrical activity B) neurotransmitter vesicles C) junction between one neuron and another D) nucleus and other organelles E) axon cytoplasm F) oligodendrites and Schwann cells G) conduct signals inward H) conducts signals outward I) conduct signals outward 1) myelin sheath 2) cell body 3) dendrites 4) axon 5) synaptic boutons 6) nodes of Ranvier 7) axoplasm 8) synapse
If your mother is heterozygous for Huntington’s disease, which is caused by a dominant allele, the odds that you will
inherit the disorder from her are ____.
a. 1/4 b. 1/2 c. 3/4 d. 1 e. 0
A virus in the lysogenic cycle is referred to as a
a. prophage. b. virulent phage. c. tempered phage. d. T-even phage. e. lytic phage.
Following cleavage of the zygote, which of the following is the first to occur?
a. blastula b. gastrula c. neural crest d. morula e. primitive streak