1) Human reproduction usually involves a) internal fertilization and internal development b) external fertilization and external development c) internal fertilization and external development d) external fertilization and internal development 2) Which processes lead to the greatest variety of genetic combinations? a) asexual reproduction and cloning b) meiosis and fertilization c) meiosis and mitosis d) cloning and mitosis 3) In humans, a sperm cell and an egg cell normally fuse in the upper portion of the a) cervix b) vagina c) oviduct d) ovary 4) The development of organs and tissues from a zygote includes a) mitosis and differentiation b) mitosis and gamete production c) meiosis and gamete production d) meiosis and fertilization e) 5) What normally happens immediately after fertilization in sexual reproduction? a) specialization of cells to form a fetus from an egg b) production of daughter cells having twice the number of chromosomes as the parent cell c) production of daughter cells having half the number of chromosomes as the parent cell d) division of cells resulting in the development of an embryo from a fertilized egg cell e) 6) Which term describes the series of rapid cell divisions that occur immediately after zygote formation? a) fertilization b) meiosis c) differentiation d) cleavage 7) A cell resulting from cleavage is similar to a fertilized cell because both cells are a) zygotes b) sex cells c) monoploid d) diploid 8) The process of cleavage leads most directly to the formation of a a) zygote b) blastula c) gonad d) gamete 9) Which statement best explains why different body cells of the same individual look and function differently? a) Each cell contains different genes. b) Different genes are activated in different kinds of cells. c) Cells are able to change to adapt to their surroundings. d) Half of the genes in the cells came from the mother and half from the father. 10) Although a liver cell and a muscle cell in a human developed from the same single cell, their appearance and functions are different. This is because the liver cell a) contains different genes than the muscle cell b) expresses different genes than the muscle cell c) destroys the muscle cell genes it contains d) lacks the genes found in muscle cells 11) Gestation means a) period of time between puberty and menopause b) period of time between conception and birth c) period of time between birth and death

Embryo Development Quiz

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