How can nutrition of the mother during pregnancy affect the risk of the offspring later being susceptible to obesity and cancer?
What will be an ideal response?
We now know that the activity of some genes can be changed by external influences, in this case, maternal nutrition. Changing the activity of genes during fetal development may result in disease later in life.
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What are the differences between red and white muscle fibers?
What will be an ideal response?
Four of the following are features found exclusively among all vertebrates. Which one is the exception?
a. notochord b. pharyngeal gill slits c. four legs d. post-anal tail e. dorsal nerve cord
Fertilization begins when ____
a. sperm enter the uterus b. sperm enters the secondary oocyte c. prior to sperm capacitation d. before the sperm pass through the zona pellucida e. the egg nucleus produces 46 chromosomes
RNA is specifically produced in the:
A. Ribosomes B. DNA C. Nucleolus D. Chromatin