Crossing Over. What phase in Meiosis does this occur?
What will be an ideal response?
Crossing over is the exchange of genetic material between homologous chromosomes. Occurs in Prophase I
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Which statement is not true about conifers?
(a) Conifers are gymnosperms. (b) All conifers belong to the genus Pinus. (c) All conifers have naked seeds. (d) Conifers are heterosporous.
Which type of receptor is membrane-associated? (Select all correct choices.)
A. G protein-coupled receptor B. receptor kinase C. ligand-gated ion channel D. nuclear receptor
Mycobacterium tuberculosis
A. lives in the soil. B. can survive for 8 months in fine aerosol particles. C. has a capsule. D. integrates its genome into host cell DNA. E. produces several virulence factor enzymes and an exotoxin.
What type of gland releases its product onto an
internal or external surface?
a. endocrine b. muscular c. neural d. exocrine e. connective