Science Practice Test

According to Mendel’s first law, what does an individual gamete contain? a.) A gene. b.) A pair of genes. c.) One allele of a gene. d.) A pair of alleles of the same gene. Correct answer is: c. 2.) Which of the following is both an exocrine and endocrine gland? a.) Adrenal Glands b.) Liver c.) Thyroid Gland d.) Parathyroid Glands Correct answer is: b. 3.) An atom’s physical structure is composed of which of the following? a.) A nucleus & electrons b.) A nucleus & orbits c.) Protons & neutrons d.) A nucleus & protons Correct answer is: b. 4.) Growth factors and histamine are chemical agents released in small amounts that act locally on neighboring cells. Which of the following best describes the function of growth factors and histamine? a.) Endocrine function b.) Autocrine function c.) Paracrine function d.) None of the above Correct answer is: c. 5.) Which hormone increases basal metabolic rate in the body? a.) Parathyroid hormone b.) Thyroid hormone c.) Glucagon d.) Secretin Correct answer is: b.