Fertilization and Development PowerPoint Lesson

Multiple Choice

What is the function of the protective coat that forms around the egg during fertilization?

• It helps the egg move through the fallopian tube

• It prevents another sperm from entering the egg

• It provides nutrients to the zygote

• It helps the sperm attach to the egg

Open Ended

Describe the process that prevents multiple sperm from fertilizing the same egg, using information from the diagrams.

Multiple Select

Which of the following statements about identical and fraternal twins is/are correct?

• Identical twins result from the splitting of a single zygote.

• Fraternal twins result from the fertilization of two different eggs.

• Identical twins always have separate placentas.

• Fraternal twins are genetically identical.

Multiple Choice

What is the correct sequence of early embryonic development from fertilization to implantation?

• Zygote → 2-cell stage → 4-cell stage → 8-cell stage → Blastocyst → Implantation

• Oocyte → Zygote → Blastocyst → 8-cell stage → Implantation

• Zygote → Blastocyst → 2-cell stage → Implantation → 8-cell stage

• Oocyte → 2-cell stage → 4-cell stage → Blastocyst → Implantation

Fill in the Blanks

The process by which a blastula becomes a gastrula is called

Open Ended

Explain the significance of cleavage after fertilization and how it contributes to embryonic development.

Fill in the Blanks

The hollow ball of cells formed during early embryonic development is called a

.

Open Ended

Explain the significance of the three germ layers formed during gastrulation and how they contribute to the development of an organism.

Multiple Choice

When does the zygote start being called an embryo?

• After fertilization is complete

• As soon as cleavage begins

• When the blastula forms

• After implantation

Multiple Select

Which of the following structures are derived from the mesoderm layer during embryonic development?

• Circulatory system

• Nervous system

• Skeletal system

• Digestive tract lining

Multiple Choice

What determines a cell's job or function during differentiation?

• The proteins produced by the cell

• The cell's size

• The cell's location in the embryo

• The number of chromosomes

Open Ended

Describe how stem cells can give rise to different specialized cells in the body. Use examples from the diagram to support your explanation.

Multiple Choice

Which of the following genetic disorders can be detected using amniocentesis?

• Down Syndrome

• Diabetes

• Asthma

• Hypertension

Multiple Choice

Which stage comes immediately after the 8-cell embryo in embryonic development?

• 16-cell embryo

• Blastula

• Gastrula

• Zygote

Open Ended

Explain the roles of the amnion and placenta in fetal development.

Multiple Choice

Where does human fertilization typically occur?

• Ovary

• Uterus

• Fallopian tube

• Vagina

Open Ended

Explain the process of amniocentesis and describe what information can be obtained from the analysis of amniotic fluid.

Multiple Select

Which of the following are functions of the umbilical cord?

• Attaches the embryo to the placenta

• Contains blood vessels connecting embryo's circulatory system to placenta

• Produces amniotic fluid

• Transfers oxygen directly from mother to embryo

Fill in the Blanks

The placenta allows the passage of nutrients and oxygen from the mother to the fetus by

.

Multiple Choice

During which trimester do muscle tissue, bone, and skin form, and the fetus begins to hear and swallow?

• First trimester

• Second trimester

• Third trimester

• Fourth trimester

Open Ended

Describe the changes in fetal appearance from the first to the ninth month of pregnancy.

Open Ended

Explain how reproductive technology has impacted the reproduction of humans and other organisms.

Multiple Select

Which of the following are examples of how reproductive technology is used in agriculture?

• Selective breeding for desirable traits

• Artificial insemination in farm animals

• Natural pollination

• Genetic modification of crops

Fill in the Blanks

Ultrasounds use

waves to allow medical professionals to view the ovaries, oviducts, and a growing fetus.

Multiple Choice

Which of the following is NOT a step in the IVF procedure?

• Ovarian stimulation

• Egg retrieval

• Natural fertilization inside the body

• Embryo transfer

Open Ended

Describe the main steps involved in the process of in vitro fertilization (IVF).

Open Ended

What questions do you still have about the process of human fertilization and development?