Template:BGDA Practical 3 - Fertilization Interactive: Difference between revisions

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==Interactive Component==
==Fertilization Interactive Component==
{| class="wikitable mw-collapsible mw-collapsed"
{| class="wikitable mw-collapsible mw-collapsed"
! Attempt the Quiz - Fertilization 
! Attempt the Quiz - Fertilization 
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<quiz display=shuffle>
<quiz display=shuffle>


{During Prophase I of meiosis:
{At fertilisation:
|type="()"}
|type="()"}
- Reduction of the number of chromosomes occurs
- male and female pronuclei complete their meiotic division
+ random recombination of hereditary material (DNA) occurs
+ male and female pronuclei enter interphase
- already duplicated DNA is separated
- cyclic AMP (cAMP) is secreted by the zygote to block polyspermy
- nondisjunction of the chromosomes could occur
- the zona pellucida is discarded
- All of the above.
- All of the above.
|| During {{Prophase I}} of {{meiosis}} random recombination of DNA (hereditary material) occurs. There is no reduction in chromosome number, separation of duplicated DNA and nondisjunction of the chromosomes is unlikely to occur during {{Prophase I}}.
|| The male and female pronuclei enter interphase before commencing the first mitosis.


{All of the following are essential for successful fertilization except:
|type="()"}
- capacitation of the sperm
- transport of the sperm through the female genital tract
- transport of the zygote to the uterine cavity
+ separation of the sperm from semen
- bidirectional movements of gametes in the uterine tube
|| Separation of the sperm from semen is not essential for successful fertilization to occur. All the other listed options are essential for successful fertilization.


{In meiosis, the composition of chromatid is changed during:
{Fertilization commences when a spermatozoon makes contact with an oocyte and ends:
|type="()"}
|type="()"}
+ prophase I
+ with the intermingling of maternal and paternal chromosomes at metaphase of the first cleavage division
- metaphase I
- when the spermatozoon is completely taken into the ootid
- anaphase I
- when the spermatozoa penetrates the zona pellucida
- anaphase II
- with the formation of the second polar body
- prophase II
- all of the above
|| During {{Prophase I}} of {{meiosis}} random recombination of DNA occurs that leads to the change in composition of chromatid.
|| Fertilization commences when a spermatozoon makes contact with an oocyte and ends with the intermingling of maternal and paternal chromosomes at metaphase of the first cleavage division.


{In a dividing cell, the replication of DNA occurs during:
{Transport of sperm through the cervix is assisted by all of the following except:
|type="()"}
|type="()"}
+ interphase
+ capacitation of the sperm
- prophase
- the time of the female cycle
- metaphase
- properties of the cervical mucus
- anaphase
- contractile activity of the uterus
- telophase
- pH
|| Dividing cells replicate their DNA during interphase S phase, before any of the M phase stages. ({{mitosis}})
|| Capacitation of the spermatozoa modifies the glycoprotein coat and seminal proteins, the spermatozoa are already motile before capacitation, and therefore capacitation does not assist transport of sperm through the cervix. All the other listed options aid cervical transport of sperm.
</quiz>
 
{Select the correct '''options''' below that refer to the maternal contributions to the zygote:
|type="[]"}
+ mitochondria
+ nucleolus
+ one centriole
- Y chromosome
- polar bodies
 
|| Y chromosome is a paternal contribution. The polar bodies do not contribute to the zygote, they are extruded and lost after this first cell stage.


{Which of the following would be the most common karyotype for Turner's Syndrome:
|type="()"}
- 44,XX
+ 45,X
- 44,XY
- 47,XXY
- 46,XX
|| Turner's Syndrome (45,X or 45,X0) is a form of {{monosomy}} associated with either a missing or altered second X chromosome.


</quiz>
|}<noinclude>[[Category:Template]][[Category:Quiz]][[Category:Fertilization]]</noinclude>

Revision as of 10:54, 8 May 2019

Fertilization Interactive Component

Attempt the Quiz - Fertilization 
BGDsmall.jpg

Here are a few simple Quiz questions that relate to Fertilization from the lecture and practical.

  

1 At fertilisation:

male and female pronuclei complete their meiotic division
male and female pronuclei enter interphase
cyclic AMP (cAMP) is secreted by the zygote to block polyspermy
the zona pellucida is discarded
All of the above.

2 All of the following are essential for successful fertilization except:

capacitation of the sperm
transport of the sperm through the female genital tract
transport of the zygote to the uterine cavity
separation of the sperm from semen
bidirectional movements of gametes in the uterine tube

3 Fertilization commences when a spermatozoon makes contact with an oocyte and ends:

with the intermingling of maternal and paternal chromosomes at metaphase of the first cleavage division
when the spermatozoon is completely taken into the ootid
when the spermatozoa penetrates the zona pellucida
with the formation of the second polar body
all of the above

4 Transport of sperm through the cervix is assisted by all of the following except:

capacitation of the sperm
the time of the female cycle
properties of the cervical mucus
contractile activity of the uterus
pH


{Select the correct options below that refer to the maternal contributions to the zygote:

type="[]"}

+ mitochondria + nucleolus + one centriole - Y chromosome - polar bodies

Y chromosome is a paternal contribution. The polar bodies do not contribute to the zygote, they are extruded and lost after this first cell stage.


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