Name: Date: 1The scientific study of biological, cognitive, social and personali

Question

Name: Date: 1The scientific study of biological, cognitive, social and personality development throughout the life span is A) social psychology B) personality psychology C) developmental psychology D) life span psychology 2. A is the basic unit of genetic instruction; the human genome contains about 20,000 of these. A) zygot B) gene C) chromosome D) teratogen 3. For a male fetus, the father contributes a(n) chromosome and the mother contributes a(n) A) X: X B) Y: Y C) X: Y D) Y:X chromosome. A) B) C) D) is the correct order of the stages of prenatal development? embryonic, germinal, fetal germinal, embryonic, fetal fetal, germinal, embryonic germinal, fetal, embryonic 5. The germinal stage of development is completed approximately following following and the embryonic stage is completed approximately_ A) B) C) D) 2 weeks; 2 months 1 month; 3 months 2 weeks; 12 weeks 4 weeks; 8 weeks Page 1

Explanation / Answer

1. Correct Answer- C- Developmental Psychology is the branch of psychology which studies human development across the various stages and aspects of human life span.

2. Correct Answer- B- gene is the basic building blocks of genetic infromation and are in the form of DNA

3. Correct Answer- D- Y ; X. Mother contribues an X chromosome and father contributes a Y chromosome for a male fetus. Basically whether a fetus will be male or female is determined by the father and not the mother.

4. Correct Answer- B- germinal, embroynic and fetal. These are the three stages of prenatal development.

5. Correct Answer- A- 2 weeks, 2 months. Two week period after conception is called as 'germinal period'. Conception occurs when a sperm cell combines with an egg cell to form a zygote. About thirty-six hours after conception, the zygote begins to divide quickly. The resulting ball of cells moves along the mother’s fallopian tube to the uterus.

Around seven days after conception, the ball of cells starts to become embedded in the wall of the uterus. This process is called implantation and takes about a week to complete. If implantation fails, as is quite common, the pregnancy terminates. One key feature of the germinal stage is the formation of a tissue called the placenta. The placenta has two important functions:

The embryonic stage lasts from the end of the germinal stage to two months after conception. The developing ball of cells is now called an embryo. In this stage, all the major organs form, and the embryo becomes very fragile. The biggest dangers are teratogens, which are agents such as viruses, drugs, or radiation that can cause deformities in an embryo or fetus. At the end of the embryonic period, the embryo is only about an inch long.

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