ANAT2341 Lab 1 - Quiz: Difference between revisions

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||The '''oocyte''' is present before fertilization, the '''conceptus''' refers to all the products of fertilization and is not a developmental stage, '''polar bodies''' are small exclusion bodies enclosing the excess DNA from oocyte meiosis. I did not discuss in detail '''blastomeres'''  a term often used to describe the first cells formed from zygote mitosis.
||The '''oocyte''' is present before fertilization, the '''conceptus''' refers to all the products of fertilization and is not a developmental stage, '''polar bodies''' are small exclusion bodies enclosing the excess DNA from oocyte meiosis. I did not discuss in detail '''blastomeres'''  a term often used to describe the first cells formed from zygote mitosis.


{Which process in the third week of development converts the embryonic disc into the trilaminar embryo.
{Which zone pellucid glycoprotein is required for spermatozoa recognition/binding.
|type="()"}
|type="()"}
- placentation
- ZP1
+ gastrulation
+ ZP2
- neuralation
- ZP3
- somitogenesis
- ZP4
- embryonic disc folding
- ZP5
||Gastrulation, meaning gut formation, converts the early embryonic disc into the trilaminar or 3 germ layer embryo (ectoderm, mesoderm, endoderm).
||Zone pellucid glycoprotein 2 (ZP2) and its cleavage blocks spermatozoa binding. Look at this recent  [[:File:Model_of_gamete_recognition_zona_pellucida.jpg|model of gamete recognition]]. Oh, and there is no ZP5.





Revision as of 11:45, 7 August 2015

ANAT2341 Lab 1: Introduction | Gametogenesis | Oogenesis | Spermatogenesis | Fertilization | Sex Determination | Online Assessment | ANAT2341 Lab 1 - Quiz
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Here are a few simple questions that relate to your introduction to embryology lecture and practical, this page is not a part of today's Practical class.

You should try in your own time after completing the Practical today.


Take the Quiz

1 Which of the following statements is most correct about the human menstrual cycle.

The menstrual cycle in all women is a 28 day reproductive cycle
Ovulation always occurs at the midpoint of the menstrual cycle
The menstrual cycle's main function is to regularly replace the lining of the uterus
A high body temperature indicates ovulation is occurring
The menstrual cycle is an endocrine cycle regulating reproductive physiological changes

2 Most pregnancies can be detected by pregnancy tests soon after fertilization.

true
false

3 Which of the following statements is correct about the zona pellucida:

surrounds the oocyte in the ovary
protects oocyte in the uterine tube
is a specialized extracellular matrix
is important for fertilization
all of the above

4 Pregnancy tests generally are based upon the detection in maternal urine of:

Estrogen
Progesterone
human Chorionic Somatommotropin
human Chorionic Gonadotrophin
human Chorionic Corticotropin

5 The most correct sequence of early development following fertilization is:

zygote, blastomeres, morula, blastocyst
oocyte, zygote, morula, blastocyst
zygote, conceptus, blastocyst
polar bodies, zygote, conceptus, blastocyst

6 Which zone pellucid glycoprotein is required for spermatozoa recognition/binding.

ZP1
ZP2
ZP3
ZP4
ZP5

7 Which of the following statements about Figure 1 (shown below) is most correct:

figure 1 shows a normal female karyotype
figure 1 shows all human chromosomes
figure 1 shows a metaphase spread of a human genome
figure 1 shows an abnormality of mitosis


Figure 1
Figure 1


ANAT2341 Lab 1: Introduction | Gametogenesis | Oogenesis | Spermatogenesis | Fertilization | Sex Determination | Online Assessment | ANAT2341 Lab 1 - Quiz