MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Heart is derived from ______ |
| A. | Mesoderm |
| B. | Endoderm |
| C. | Ectoderm |
| D. | Mesenchyme |
| Answer» B. Endoderm | |
| 2. |
The cells within the inner cell mass that possess the ability to give rise to the entire organism are called _______ |
| A. | placental cells |
| B. | stem cells |
| C. | mother cells |
| D. | zygote |
| Answer» C. mother cells | |
| 3. |
The ability of a cell to differentiate is called ______ |
| A. | potential |
| B. | potency |
| C. | stemness |
| D. | development |
| Answer» C. stemness | |
| 4. |
What layer separates ectoderm from the endoderm in the developing fetus? |
| A. | Mesenchyme |
| B. | Mesendoderm |
| C. | Mesoderm |
| D. | Placenta |
| Answer» D. Placenta | |
| 5. |
Implantation is followed by the differentiation of inner cell mass into outer _______ and inner ______ |
| A. | ectoderm, endoderm |
| B. | ectoderm, mesoderm |
| C. | ectoderm, mesendoderm |
| D. | mesoderm, endoderm |
| Answer» B. ectoderm, mesoderm | |
| 6. |
Which of these is not an associated function of the increased maternal hormones estrogen, progesterone, prolactin, and cortisol? |
| A. | Development of fetus |
| B. | Metabolic changes in the mother |
| C. | Maintenance of pregnancy |
| D. | Lactation |
| Answer» E. | |
| 7. |
Fetal movements can be observed during ____________ |
| A. | first month of pregnancy |
| B. | first trimester |
| C. | second trimester |
| D. | third trimester |
| Answer» D. third trimester | |
| 8. |
External genital organs are developed during _________ |
| A. | first month of pregnancy |
| B. | first trimester |
| C. | second trimester |
| D. | third trimester |
| Answer» C. second trimester | |
| 9. |
Which organ is the first to form in the developing human fetus, formed after just 1 month of pregnancy? |
| A. | Heart |
| B. | Brain |
| C. | Kidney |
| D. | Liver |
| Answer» B. Brain | |