Biology MCQs for MDCAT/ MCAT and Test Preparation

161. During which phase of meiosis, crossing over occurs?

(a) metaphase-II

(b) anaphase-1

(c) Prophase-1

(d) metaphase-1

162. Which of the following occurs during meiosis- l but not during mitosis?

(a) The chromatids of each chromosome are separated

(b) Synapsis and crossing over occurs

(c) The nuclear envelope breaks down

(d) None of these

163. Meiosis takes place in which of the following organs?

(a) Testes

(b) Lungs

(c) Heart

(d) Stomach

164. Two sister chromatids are collectively called?

(a) Chromosome

(b) multi chromatid

(c) Centromere

(d) Homologous pair

165. During the process of regeneration, the type of cell division is?

(a) Only 1 meiotic division

(b) Mitosis

(c) Both meiotic divisions

(d) all of these

166. Which of the following statements are true about homologous chromosomes?

(a) They are identical

(b) One partner of homologous pair move to each daughter cell

(c) They pair -up during meiosis

(d) All of these

167. The term Enzyme is derived from?

(a) Greek

(b) Latin

(c) Biological

(d) English

168. The term enzyme was first of all used by?

(a) Winhelm Kuhne

(b) Charles Babbage

(b) Aristotle

(c) Zacharias Janssen

169. The Complex organic compounds which speed up a biological reaction without any change in itself is called?

(a) Enzyme

(b) Mitosis

(c) Meiosis

(d) None of these

170. The term enzyme is introduced 1 time in?

(a) 1887

(b) 1678

(c) 1978

(d) 1778