Are the stages of mitosis the same in plants and animals?
a. Yes
b. No
a
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Which of the following statements would be true if a cell has a mutation in the p53 gene such that the p53 protein is no longer able to be phosphorylated?
A. The amount of p53 protein in the nucleus would remain low in the presence of DNA damage. B. The amount of cytoplasmic p53 protein would increase in response to DNA damage. C. The kinase activity in the nucleus would decrease in response to DNA damage.
Answer the following statements true (T) or false (F)
1. Damage to the seminal vesicles would prevent sperm from becoming motile. 2. Erectile dysfunction can be treated by drugs that increase levels of nitric oxide. 3. FSH stimulates the activity of Leydig cells and LH stimulates the activity of Sertoli cells. 4. A human female has the largest number of primary oocytes at the onset of puberty. 5. FSH secreted by the pituitary stimulates fluid secretion into the antrum of the follicle.
Which of the following are the fundamental embryonic tissues called the "germ layers"?
A. mesoderm, exoderm, and hydroderm B. ectoderm, endoderm, and exoskeleton C. mesoderm, endoderm, and ectoderm D. mesoderm, muscle, and tissue E. tissues, organs, and organ systems
Explain how the composition of breast milk compared with formula affects the microbiota of infants.
What will be an ideal response?