During primary growth, auxin causes transport proteins to pump hydrogen ions from cytoplasm into the cell wall, which increases ________ and softens the cell wall.
Fill in the blank(s) with the appropriate word(s).
acidity
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For which of the following diseases are there
vaccines that provide protection against the disease?
a. measles b. mumps c. rubella d. chicken pox e. all of these
The chromatids detach from one another and
become visibly separate chromosomes during a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase
Induction of long-term potentiation and long-term depression requires activation of two types of:
a. acetylcholine receptors. b. GABA receptors. c. norepinephrine receptors. d. glutamate receptors. e. serotonin receptors
Einkorn (Triticum boeoticum) is an ancient grain with a diploid number of 14 (2n = 14). Durum (Triticum turgidum) appeared later. Durum grains are larger and the plant is hardier
It has twice the genetic material of Einkorn (2n = 28 ) but contains basically the same chromosomes. Can you propose a hypothesis on how durum evolved?