During meiosis in the male, sex chromosomes segregate to produce two types of sperm: Xbearing sperm and Y-bearing sperm
A. true
B. false
A
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The pairing of chromosomes along their lengths, which is essential for crossing over, is referred to as
A. syngamy. B. synapsis. C. prophase. D. recombination. E. centromere.
Arbuscular mycorrhizae are characterized by all of the following features except
A. They are the most common mycorrhizal type. B. Fungal hyphae penetrate plant root cells. C. They are seen in the earliest vascular plant fossils. D. The fungus can associate with several species of plants. E. The fungal component is a glomeromycete.
The streamlined bodies seen in sharks, tuna, and dolphins is most likely due to
A. a recent shared common ancestor. B. the physical properties of water. C. different selection pressures. D. imperfect design. E. the need to escape fast-moving predators.
Atmosphere is important in food spoilage; high H2S tends to reduce spoilage, while high CO2 tends to increase spoilage.
Answer the following statement true (T) or false (F)