Goiter is a disease characterized by an enlarged thyroid gland and results from (check all that apply)

_____ iodine deficiency in the diet
_____ reduced levels of T3 in the blood
_____ reduced levels of T4 in the blood
_____ excessive thyroid-stimulating hormone production
_____ excessive parathyroid hormone production


__X__ iodine deficiency in the diet
__X__ reduced levels of T3 in the blood
__X__ reduced levels of T4 in the blood
__X__ excessive thyroid-stimulating hormone production
_____ excessive parathyroid hormone production

Biology & Microbiology

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During meiosis in the female, sex chromosomes segregate to produce two types of eggs: Xbearing eggs and Y-bearing eggs

A. true B. false

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What defines a lipid?

a. They are soluble in water. b. They are insoluble in polar solvents such as water. c. They are polymers. d. They always have a multi-ringed structure.

Biology & Microbiology

Due to a chromosome deletion, Timothy is very retarded, both physically and mentally. He also has a

severe abnormality of his voice-box so that his cry is abnormal. Give the karyotypic designation and the name of the syndrome that he most likely has. ____________________ Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Could your lifestyle or the food you eat influence evolution? How?

What will be an ideal response?

Biology & Microbiology