EP CONNECT ONLINE ACCESS FOR BIOLOGY
20th Edition
ISBN: 9781260494655
Author: Raven
Publisher: MCG COURSE
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Textbook Question
Chapter 52, Problem 6U
Of the following processes, which occurs last?
a. Cleavage
b. Neurulation
c. Gastrulation
d. Fertilization
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Of the following processes, which occurs last during embryonic development?a. cleavageb. neurulationc. gastrulationd. fertilization
The formation of three germ layers is called
Select one:
a. gastrulation
b. pluripotency
c. differentiation
d. neurulation
Which of the following stages of the fertilization process stimulates completion of meiosis II in the oocyte’s nucleus?
A. The sperm nucleus and egg nucleus combine to form the genetic material of the zygote
B. Sperm release enzymes to digest the protein layer of the secondary oocyte
C. The entry of a sperm into the secondary oocyte
D. The swimming of sperm from the vagina, through the uterus, and up to an oviduct
Chapter 52 Solutions
EP CONNECT ONLINE ACCESS FOR BIOLOGY
Ch. 52.1 - Describe the events involved in fertilization.Ch. 52.1 - Prob. 2LOCh. 52.2 - Prob. 1LOCh. 52.2 - Prob. 2LOCh. 52.2 - Prob. 3LOCh. 52.3 - Prob. 1LOCh. 52.3 - Compare gastrulation in different animals.Ch. 52.3 - Name the extraembryonic membranes in amniotes.Ch. 52.4 - Prob. 1LOCh. 52.4 - Prob. 2LO
Ch. 52.4 - Prob. 3LOCh. 52.5 - Prob. 1LOCh. 52.5 - Explain the function of the organizer.Ch. 52.5 - Distinguish between primary and secondary...Ch. 52.6 - Describe the major developmental events in the...Ch. 52.6 - Explain the role of the placenta.Ch. 52.6 - Prob. 3LOCh. 52 - Data analysis Two different genes have mutant...Ch. 52 - Prob. 1IQCh. 52 - Prob. 1UCh. 52 - Which of the following plays the greatest role in...Ch. 52 - Gastrulation is a critical event during...Ch. 52 - Gastrulation in a mammal would be most similar to...Ch. 52 - Prob. 5UCh. 52 - Of the following processes, which occurs last? a....Ch. 52 - Which of the following would qualify as a...Ch. 52 - Prob. 1ACh. 52 - In the Spemann experiment, when the dorsal lip is...Ch. 52 - Suppose that a burst of electromagnetic radiation...Ch. 52 - Prob. 4ACh. 52 - Drug or alcohol exposure during which of the...Ch. 52 - Axis formation in amniotic embryos could be...Ch. 52 - Prob. 1SCh. 52 - You look up from your studying to see your dog,...Ch. 52 - Why doesnt a woman menstruate while she is...Ch. 52 - Spemann and Mangold were able to demonstrate that...
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- ___________ removes webs between developing digits. a. Gastrulation c. Apoptosis b. Lactation d. Implantationarrow_forwardWhich of the following does NOT aid the sperm in fertilization? a. increased mitochondria b. flageullum development c. cytoplasmic bridge d. hyaluronidase and protease e. acrosomesarrow_forwardOogenesis involves germ cells in the ovary undergoing meiosis to produce a functional ovum at the end of the process.Which of the following cells is penetrated by a sperm cell during the process of fertilization? Select one: a. Secondary oocyte b. Oogonia c. Primary oocyte d. Ovumarrow_forward
- Choose the best of the following The fusion of a sperm and an egg cell initally produces which of thefollowing? a. blastocyst c. zygoteb. gamete d. stem cellarrow_forwardWhich of the following plays the greatest role in determining how cytoplasmic division occurs during cleavage? a. Number of chromosomes b. Amount of yolk c. Orientation of the vegetal pole d. Sex of the zygotearrow_forwardDuring morphogenesis, gastrulation does which of the following?A. Gastrulation produces the ectoderm through formation of a blastocyst.B. Gastrulation produces the mesoderm to form the lining of the digestive tract.C. Gastrulation provides the mechanisms whereby cells can form the neural tube.D. Gastrulation produces the endoderm through invagination of the blastula.arrow_forward
- A study of the early embryo indicates that the glans penis of the maledevelops from the same embryonic structure as which of these femalestructures?a. labia majora c. clitoris e. urinary bladderb. uterus d. vaginaarrow_forwardWhich cell contributes the necessary nutrition to the growing zygote? a a polar body b the egg cell c a spermatocyte d the sperm cellarrow_forwardWhich of the following statement does NOT describe the event that occurs if the ovum is not fertilized? Select one: A. Progesterone maintains the endometrium for the zygote. B. Low level of progesterone results in menstruation. C. The corpus luteum degenerates and stops producing estrogen and progesterone. D. GnRH, FSH, and LH levels begin to increase.arrow_forward
- Which of the following is not a mechanism on how contraceptive pills work to prevent pregnancy? A. thinning the endometrium to prevent implantation B. inhibition of follicular development and suppression of ovulation C. progesterone inhibits the sperm from penetrating through the cervix and female upper tract by making the cervical mucus unfriendly D. stimulates the production of high testosterone levelsarrow_forwardWhich of the following statements about oocytes and ovulation is correct? a. The production of primary oocytes continues in women from the onset of puberty until the onset of menopause. b. Meiotic divisions are complete at the time of ovulation. c. At ovulation, the structure released from the follicle includes a secondary oocyte and polar body. d. All of these statements are correctarrow_forwardWhich of the following structure develops into only the fetus? A. Blastocyte B. Zygote C. Trophoblast D. Inner cell massarrow_forward
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