DNA methylation is a form of transcriptional regulation by eukaryotes
____________________ Indicate whether the statement is true or false.
F, chromatin
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In the life cycle of the brown alga Laminaria, which stage represents the young sporophyte?
1.A
2.B
3.C
4.D
5.E
Mendel crossed pea plants dominant for two different traits (tall and green pods) with pea plants recessive for those same two traits (short and yellow pods). This cross resulted in pea plants that had combinations of all four traits (tall with green pods, tall with yellow pods, short with green pods, and short with yellow pods). Which law of inheritance best describes why this happens?
A. the law of segregation B. the second law of thermodynamics C. the law of independent assortment D. the law of pedigrees
The process whereby oxygen is depleted by the growth of microorganisms due to excess nutrients in aquatic systems is called ________.
Fill in the blank(s) with the appropriate word(s).
The circulatory system transports many important substances such as oxygen and nutrients. Which of the following helps keep the blood flowing normally?
A) nutrients in the blood plasma B) muscular walls of the arteries C) oxygen content of the blood D) hemoglobin in the blood