How does vernalization alter the genetic material of plants? In other words, how does the genetic material of some plants change after exposure to the winter months? Select all correct choices
A. through chromatin remodeling
B. through mutations in certain genes
C. through DNA methylation
D. through RNAi
A,C
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The pear-shaped organ in females that houses and nourishes the developing fetus. _____
A) Endometrium
B) Testis
C) Cervix
D) Uterus
E) Oviduct
F) Ovaries
G) Vagina
H) Seminal vesicle
I) Penis
J) Prostate gland
K) Vas deferens
L) Glans penis
Where are calcium ions stored before a signaling pathway releases them into the cytosol?
a. nucleus
b. ribosome c. lysosome d. plasma membrane e. endoplasmic reticulum
A trend first observed in the evolution of the earliest tetrapods was _____
A) the appearance of jaws B) feet with digits C) the mineralization of the endoskeleton D) the amniotic egg
Which chemical controls blood vessel dilation?
a. acetylcholine b. nitric oxide c. serotonin d. endorphins e. dopamine