Physiology

The time when K+ is moving out of the cell is called

a. relative refractory period

b. absolute refractory period

c. both

d. none of them

Which process begins after Na influx essentially stops at its plateu

a. Depolarization

b. Repolarization

c. both

d. none

Ectoderm forms

a. Epidermis

b. Blood

c. larynx

d. All

The following are germ layer origin of tissues

a. ectoderm

b. mesoderm

c. endoderm

d. All

Each new sex cell is called

a. Gamete

b. embryo

c. zygote

Crossing over is followed by

a. Meiotic division I

b. Meiotic divisionII

c. Both

d. None

The following cell division occurs during gametogenesis

a. Mitosis

b. Meiosis

c. Both

d. None of them

The division of cytoplasm is called

a. Telophase

b. Metaphase

c. Cytokinesis

d. None of them

The stage in which each centromere divides is called

a. Prophase

b. Metaphase

c. anaphase

d. telophase

The period of cell division when the nuclear envelop and nucleolus totally disappear is called

a. Prophase

b. Metaphase

c. anaphase

d. telophase