Chapter 47 Questions-1

Chapter 47 Questions-1 - Ch 47 Multiple Choice Identify the...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Ch 47 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Russian nesting dolls, which are a set of smaller dolls packed inside larger dolls, most resemble which one of the following developmental theories? a. epigenesis b. preformation c. cell differentiation d. morphogenesis e. cell theory ____ 2. You buy a pie that contains a mixture of cherries and blueberries. When you cut the pie up, you notice that some slices have more blueberries than cherries and other slices have more cherries than blueberries. This uneven distribution of cherries and blueberries is most like the uneven distribution of a. nuclei in a zygote. b. nuclei in an early embryo. c. nuclei in an egg. d. cytoplasmic determinants in a zygote. e. cytoplasmic determinants in an early embryo. ____ 3. A puppy is born with a malformed right leg. A veterinarian studies the animal and determines that all of the correct types of cells are present, but that the leg simply took on the wrong shape. This is most likely a problem of a. morphogenesis. b. cell differentiation. c. histogenesis. d. preformation. e. fertilization. ____ 4. As an embryo develops, new cells are formed and different types of cells develop by the process of a. differentiation and morphogenesis. b. preformation and cell differentiation. c. cell division and differentiation. d. preformation and morphogenesis. e. preformation and epigenesis. ____ 5. Fertilization of an egg without activation is most like a. placing the key in the ignition of a car but not starting the engine. b. resting during halftime of a basketball game. c. preparing a pie from scratch and baking it in the oven. d. walking to a store and buying some groceries. e. boarding a train in Chicago and riding it to Philadelphia. ____ 6. In some rare all-female salamander species, the females require the sperm from males of another species. However, the developing embryos show no signs of a genetic contribution from the sperm. In this case, the sperm appear to be used only for a. morphogenesis. b. epigenesis. c. egg activation. d. cell differentiation. e. the creation of a diploid cell. ____ 7. Which of the following is a function of the acrosome contents during fertilization?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
a. block polyspermy b. help propel the sperm toward the egg c. digest the exterior coats of the egg d. nourish the mitochondria of the sperm e. trigger the completion of meiosis by the sperm cell ____ 8. Which of the following statements is (are) true concerning the vitelline layer of the sea urchin egg? a. It is outside the fertilization membrane. b. It releases calcium, which initiates the cortical reaction. c. It has receptor molecules that are specific for binding acrosomal proteins. d.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/05/2010 for the course ACT 101 taught by Professor Jenkins during the Spring '10 term at Alabama State University.

Page1 / 12

Chapter 47 Questions-1 - Ch 47 Multiple Choice Identify the...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online