THE THIRD LECTURE EXAM WILL BE GIVEN ON APRIL 21 AT 10:00 AM IN LSE 219; THE FOLLOWING IS A PRACTICE TEST AND NOT THE ACTUAL TEST THAT WILL BE GIVEN FOR THE THIRD EXAM.
THE ANSWER KEY TO THE PRACTICE TEST GIVEN BELOW IS FOUND AT http://www.clt.astate.edu/mhuss/practice_test_iii1.htm.
PRACTICE TEST III
PART I: Multiple Choice - Choose the best answer. Be sure to look over all possible choices before making your selection.
1. Blood in humans is considered to be a ________________ tissue?
A. Muscle
B. Connective
C. Nerve
D. Sensory
E. Reproductive
2. The organ system responsible in complex animals and humans for the absorption of nutrients or food would be the _________________ System.
A. Digestive
B. Respiratory
C. Skeletal
D. Nervous
E. Reproductive
3. Gametes in animals and humans are produced in ______________.
A. uterus
B. testes
C. ovaries
D. testes and ovaries
E. the penis
4. What percentage of the eggs (even though these have yet to fully mature) that a human female will ever produce are present at birth?
A. 100 %
B. 80 %
C. 60 %
D. 50%
E. 20%
5. During early development, all human embryos start out physically as _______________________.
A. males
B. females
C. neither males nor females
D. both male and female
6. What is directly responsible for the release of FSH (follicle-stimulating hormone) and LH (luteinizing hormone) from the anterior pituitary gland?
A. a releasing hormone from the hypothalamus
B. a releasing hormone from the posterior pituitary
C. estrogen
D. progesterone
E. testosterone
7. Where are the sperm stored prior to ejaculation?
A. seminiferous tubules
B. testes
C. epididymis
D. vas deferens
E. seminiferous tubules, testes, and epididymis
8. What hormone is responsible prevents sloughing off of the endometrium lining of the uterus which would lead to menstruation or in a pregnant woman to a miscarriage?
A. LH
B. FSH
C. estrogen
D. progesterone
E. testosterone
9. What ovarian structure makes and secretes progesterone?
A. follicular remnants
B. corpus luteum
C. seminiferous tubules
D. eggs
E. follicular remnants and corpus luteum
10. If fertilization of the egg or implantation of the zygote does not occur, menstruation will occur in which the _____________ will slough off leading to a bloody discharge from the uterus over a period of 3-7 days.
A. ovaries
B. endometrium
C. oviducts
D. follicles
E. placenta
11. Which of the following sexually-transmitted diseases (STDs) is not caused by a virus?
A. AIDS
B. Chlamydia
C. Genital warts
D. Hepatitis
E. Herpes
12. One hypothesis advanced by Charles Darwin and some others during the 19th century to explain heredity was called ____________________. It stated that gemmules from each part of the body passed into gametes, conveying information about the exact nature of that particular body part.
A. particulate inheritance
B. blending inheritance
C. Mendelian inheritance
D. pangenesis
E. None of the above choices are correct.
13. Gregor Mendel studied the pattern of inheritance for different traits in pea plants. Which of the following phenomena did he not describe from his experiments?
A. gene segregation
B. dominance
C. independent assortment
D. incomplete dominance
E. each plant inherits two units of instructions (two genes)
14. What are alternate forms of the same gene called?
A. loci
B. dominant and recessive
C. letters
D. alleles
E. alternators
15. The condition of having two doses of the same alleles (such as, TT, RR, tt, rr, or ss) is referred to as _______.
A. homozygous
B. heterozygous
C. heterogenetic
D. the phenotype
E. synonomous
16. In the genetic cross Rr X RR where R is completely dominant over r, the next generation will show a phenotypic ratio of __________________.
A. 1:2:1
B. 1:1:3:1
C. 3:1
D. 9:3:3:1
E. None of the above choices are correct.
17. A blending-like type of inheritance occurs when a heterozygote has an intermediate phenotype. This phenomenon is known as ____________________. For example, a red-flowering petunia crossed with a white-flowering petunia produces progeny that are all pink-flowered.
A. pleiotropy
B. recessive
C. complete dominance
D. incomplete dominance
E. epistasis
18. For a person who possesses type B blood, the possible combinations of the alleles, IBIB or IBi, refer to that individual's ______________________.
A. genotype
B. phenotype
C. allelotype
D. genetic constitution
E. mesotype
19. The incorporation of genetics during the 1920's and 30's into evolutionary theory filled in some of the gaps of information not available in the 1850's to Charles Darwin and Alfred Wallace. This revised version of Darwinian evolutionary theory is often referred to as ____________.
A. UltraDarwinism
B. NeoDarwinism
C. Scientific Creationism
D. Social Darwinism
E. Mendelian Evolution
20. The introduction of a new gene into an organism via some artificial mechanism or delivery system is called _____.
A. transformation
B. natural selection
C. teleportation
D. Both choices B and C are correct.
E. None of the above choices are correct.
PART II. TRUE AND FALSE: Answer TRUE f the statement is correct, and FALSE if the statement is incorrect or false. Some of these questions are based entirely on information in the required reading assignments.
21. The uterus contains muscle that contracts during labor to help push the baby out of the mother’s body.
22. A C-section or Caesarean section is a surgical procedure through the abdominal wall and uterus, performed to extract a baby.
23. The average gestation period for humans is about 19 months.
24. A group of cells of the same type that work to perform a particular function is know as a tissue.
25. In the human eye, image created in the back of eye on the retina is inverted or upside down.
26. The male equivalent of a female ovary would be the testis.
27. An effective way to prevent the spread of sexually-transmitted disease is through abstinence from sexual intercourse.
28. Polygenic traits are those that manifest their phenotype due to the interactions of different genes.
29. White eye color in fruit flies and the blood-clotting disorder, hemophilia, in humans are linked to the X chromosome. Such phenotypes tend to occur in males more frequently than females.
30. A gene consists of a sequence of instructions written at a molecular level on a DNA molecule.