Reproduction: NAME: 2015-2019 Regents Questions, Key Idea 4. The continuity of life is sustained through reproduction and development. 1. DNA replication occurs in preparation for (1) mitosis, only (2) meiosis, only (3) both mitosis and meiosis (4) neither mitosis nor meiosis 2. In humans, the placenta is essential to the embryo for (1) nutrition, excretion, and reproduction (2) respiration, nutrition, and excretion (3) movement, reproduction, and nutrition (4) coordination, movement, and growth 3. After a zygote is formed, specialization of cells occurs. Through which process do the cells of a zygote become specialized? (1) sexual reproduction (2) meiosis (3) fertilization (4) differentiation 7. The correct sequence for processes 1, 2, and 3 represented in the diagram is 4. Three human hormones most directly involved in sexual reproduction are (1) estrogen, insulin, and progesterone (2) testosterone, estrogen, and insulin (3) progesterone, ATP, and testosterone (4) estrogen, progesterone, and testosterone 5. Which process produces only identical offspring? (1) meiotic cell division (2) selective breeding (3) cloning (4) fertilization 6. Rabbits produce large numbers of offspring during each reproductive season, yet the number of rabbits within a given population changes very little from year to year. The stability of the population size is most likely the result of (1) the development of mutations in young rabbits (2) environmental factors that keep the population in check (3) rabbits continuing to reproduce when the population is large (4) the survival of more female rabbits than male rabbits The diagram below represents the processes leading to the formation of a human embryo. 8. Occasionally, during pregnancy, the placenta can separate from the uterus. This causes a disruption in development and sometimes death of the fetus. Harm to the developing fetus might occur because the placenta (1) transfers oxygen and nutrients to the fetal blood (2) sends maternal blood into the fetus (3) supplies milk for the fetus (4) breaks down wastes of the fetus Reproduction: NAME: 2015-2019 Regents Questions, Key Idea 4. The continuity of life is sustained through reproduction and development. 12. A standard laboratory technique used to produce a new plant is represented in the diagram below 9. Which structure produces chemicals that regulate the reproductive cycle? (1) A (2) B (3) C (4) D 10. The human male reproductive system is represented below. Which structure produces cells that have the potential to become gametes? This technique is best identified as (1) gene alteration (2) selective breeding (3) replication (4) cloning 13. A diagram of the female reproductive system is shown below. Identify the structure within which the egg cell is normally fertilized. (1) A (3) C (2) B (4) D (1) A (2) B (3) C (4) D 11. Which statement is characteristic of reproduction in humans? (1) The reproductive cells of males and females differ in chromosome number. (2) Males and females produce gametes in the ovaries. 3) Males and females produce the same number of gametes. (4) The reproductive cycles of males and females are regulated by hormones. 14. The development of organs and tissues from a zygote includes (1) mitosis and differentiation (2) mitosis and gamete production (3) meiosis and gamete production (4) meiosis and fertilization 15. The human male reproductive system is adapted for the production of (1) sperm and the delivery of these cells for internal fertilization (2) gametes that transport food to the egg (3) zygotes and the development of these cells into a fetus (4) hormones that stimulate placenta formation in the male Reproduction: NAME: 2015-2019 Regents Questions, Key Idea 4. The continuity of life is sustained through reproduction and development. 16. The diagram below summarizes some of the steps in the development of humans. All the genetic information needed for the organism to develop is first present at (1) A (3) C (2) B (4) D With the emotional roller coaster that pregnancy brings, it can be daunting [challenging] for pregnant women to take on the additional pressure of eating the “perfect” pregnancy diet. The good news: there is no single perfect diet for pregnancy. The best way for expectant mothers to meet their nutritional needs is to focus on consuming an overall healthy diet, with a variety of vegetables, fruits, whole grains, lean meats or meat substitutes, and low-fat dairy or dairy substitutes.… 17. Describe how nutrients move from the mother to the fetus. [1] _____________________________________________________________________________________ _____________________________________________________________________________________ 18. State one other way, in addition to consuming a balanced diet, pregnant women can help ensure proper development of the fetus. [1] _____________________________________________________________________________________ _____________________________________________________________________________________ 19. The human female reproductive cycle is regulated primarily by the (1) white blood cells of the circulatory system (2) muscle cells of the skeletal system (3) enzymes of the digestive system (4) hormones of the endocrine system 20. A garlic bulb consisting of several smaller sections called cloves is shown below. If cloves are separated from the bulb and later planted in a garden, a new garlic bulb will grow from each. In this way, a home gardener could grow a whole crop of genetically identical garlic plants starting with one bulb. As a result of this procedure, the gardener would (1) soon have several varieties of garlic growing in his garden (2) need to buy new garlic cloves each year in order to keep growing garlic (3) have to fertilize the female garlic plants each year so the garlic plants could produce their own cloves (4) need to be aware that if any of his garlic plants became diseased, it could very likely infect the entire crop Reproduction: NAME: 2015-2019 Regents Questions, Key Idea 4. The continuity of life is sustained through reproduction and development. Reproduction: Key Idea 4 1. 3 2. 2 3. 4 4. 4 5. 3 6. 2 7. 3 8. 1 9. 1 10. 1 11. 4 12. 4 13. 2 14. 1 15. 1 16. 3 17. Allow 1 credit. Acceptable responses include, but are not limited to: — Nutrients move across the placenta. — diffusion across the placenta — diffusion from the mother’s blood to the fetus Note: Simply stating “through the umbilical cord” by itself is not an acceptable answer 18. Allow 1 credit. Acceptable responses include, but are not limited to: — Pregnant women should have regular doctor visits. — exercise during the pregnancy — avoid alcohol/drugs 19. 4 20. 4