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Human Development MCQs (within womb)
Human Development MCQ – This collection of multiple-choice questions on human development explores the stages of prenatal development, including fertilization, embryonic development, and fetal growth.
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Answering these MCQs will not only help you understand the stages and processes of human development but also deepen your knowledge of embryology, genetics, and developmental psychology.
Ready to explore the fascinating journey of human development? Let’s get started!
Single Cells to Blastocyst MCQs
a rapid series of mitotic divisions that result in a multicellular embryo is called?
cleavage
Metastasis
Spermatogenesis
None of these
cleavage
16-celled zygote is called?
Spermatozoa
Blastoderm
mesoderm
morula
morula
Morula has _ cells
10
8
16
32
16
Morula pushes the increasing number of cells out toward the periphery of the embryo’s membrane, forming a hollow ball of cells called?
mesoderm
blastula
spermatozoa
All of these
blastula
The flattened cells along the edge of the blastocyst form _
embryoblast
blastocoel
trophoblast
None of these
trophoblast
The fluid-filled cavity in blastula is called?
embryoblast
blastocoel
trophoblast
None of these
blastocoel
The sphere of larger, rounded cells that’s destined to become the embryo is called?
embryoblast
blastocoel
trophoblast
None of these
embryoblast
_ cells secrete an enzyme that helps degrade the lining of the uterus
embryoblast
blastocoel
trophoblast
None of these
trophoblast
_ occurs when the blastocyst successfully implants itself in the wall of the uterus
conception
accomodation
Inflammation
Oogenesis
conception
After implanting itself, the developing mass of cells moves inward, forming a ball of cells called?
Blastula
ectoderm
gastrula
mesoderm
gastrula
Gastrula has _ layers
2
3
6
8
3
The outer layer of the gastrula is?
ectoderm
Mesoderm
endoderm
None of these
ectoderm
The middle layer of the gastrula is?
ectoderm
Mesoderm
endoderm
None of these
Mesoderm
The innermost layer of the gastrula is?
ectoderm
Mesoderm
endoderm
None of these
endoderm
_ develops into the skin and nervous systems
ectoderm
Mesoderm
endoderm
None of these
ectoderm
_ develops into the muscular, skeletal, and circulatory systems
ectoderm
Mesoderm
endoderm
None of these
Mesoderm
_ gives rise to the linings of your digestive and respiratory tracts, as well as organs such as the liver and pancreas
endoderm
ectoderm
Mesoderm
None of these
endoderm
Embryo MCQs
After gastrulation, the specialized cells of the ectoderm, mesoderm, and endoderm begin migrating toward other cells with the same specialty. This cellular migration is called?
Oogenesis
spermatogenesis
morphogenesis
peristalsis
morphogenesis
_ gives the embryo a shape
Oogenesis
spermatogenesis
morphogenesis
peristalsis
morphogenesis
A tubular structure called _ forms off of the center cavity of the blastocyst
allantois
endoderm
ectoderm
None of these
allantois
_ connects the fetus to the placenta
Epididymes
umbilical cord
Vas deferenes
clitoris
umbilical cord
a substance that coats the internal surfaces of the fetus’s lungs so its lung tissues don’t stick together after birth is called?
Surfactant
Mesoderm
blastoderm
endoderm
Surfactant
_ is a procedure that uses a needle to remove a small amount of amniotic fluid for genetic testing
amniosystalis
amniocentesis
amniogenesis
None of these
amniocentesis
Fetal Development and Birth MCQs
In humans, the fetal period encompasses the _ month/s of pregnancy
last six
first six
First two
last
last six
_ cause the uterus to contract durinf Fetal development and birth
Prostaglandins
oxytocin
Both of these
thyroxin
Both of these
If labor doesn’t begin naturally, medical personnel give the mother prostaglandin suppositories and/or synthetic oxytocin called __ to induce labor
Insulin
Glucagon
estrogen
pitocin
pitocin
When the fetus is finally born, the organism is called a?
Metanate
homonate
neonate
none of these
neonate
Differentiation, Development, and Determination MCQs
_ is the specialization of cells that occurs during development
Differentiation
cytokinesis
Determination
All of these
Differentiation
_ determines what the structural and functional aspects of the cell will be
Differentiation
Development
Determination
All of these
Differentiation
_ is the overall process of an organism going through stages of differentiation
cytokinesis
development
Determination
All of these
development
_ occurs when a cell commits to developing in a certain manner
Determination
Differentiation
peristalsis
All of these
Determination
Cells become differentiated through the process of _
Genetic engineering
gene regulation
Gene mutation
None of these
gene regulation
_ a process that controls which set of genes a particular cell uses at any given time
metastasis
gene regulation
Gene mutation
None of these
gene regulation
Totipotency MCQs
the ability to develop into any kind of cell or even a whole organism is called?
Totipotency
Hypopotency
spermopotency
All of these
Totipotency
_ tested tadpole cells to see whether they lost the ability to be reprogrammed and, if so, when they did
Watson and crick
Robert Briggs and T.J. King
Schleiden and shwann
Darwin and pasteur
Robert Briggs and T.J. King
Researcher, _ , had success in “growing” normal frog embryos from adult frog skin cells
J.B. Gurdon
Schleiden
shwann
pasteur
J.B. Gurdon
_ experiment was the first successful attempt to clone an organism
Schleiden’s
shwann’s
pasteur’s
Gurdon’s
Gurdon’s
MCQs on Factors Affecting Differentiation and Development
The factors that affect differentiation and development include _
embryonic induction
Programmed cell death
Homeotic genes
Cell migration
All of these
All of these
The influence of one group of cells on another group of cells is called?
embryonic induction
embryonic mutation
embryonic transcription
embryonic development
embryonic induction
_ occurs when the lens of the eye is developing
embryonic induction
embryonic mutation
embryonic transcription
embryonic development
embryonic induction
Special genes that turn other genes on or off are _
Homologous genes
Heterozygous genes
Homeotic genes
oncogenes
Homeotic genes
A __ is the sequence in the homeotic gene that remains unchanged generation after generation
Endoderm
Mesoderm
homeotranscript
homeobox
homeobox
Programmed cell death is Also called?
apoptosis
necrosis
Metastasis
mitosis
apoptosis
_ causes cells to commit suicide at particular times during development in order to remove cells from the developing organism
apoptosis
hydrolysis
Metastasis
mitosis
apoptosis
The production of _ in a male fetus, for example, leads to formation of male primary sex characteristics
estrogen
testosterone
Oxytocin
glucagon
testosterone
