1.
When in a women's pregnancy can multiple births be identified?
Correct Answer
A. In the 1st trimester
Explanation
In the first trimester of a woman's pregnancy, multiple births can be identified through various diagnostic tests such as ultrasound. During this period, the embryos or fetuses are still developing and can be visualized through imaging techniques. This allows healthcare providers to detect multiple gestations, such as twins or triplets, at an early stage. Identifying multiple births in the first trimester is crucial for appropriate prenatal care and management.
2.
What is the difference between fraternal twins and identical twins?
Correct Answer
A. Fraternal twins are created with 2 separate eggs released and fertilized simultaneously and identical twins are created with 1 egg split.
Explanation
Fraternal twins are created when two separate eggs are released and fertilized at the same time, resulting in two genetically distinct individuals. On the other hand, identical twins are created when a single egg splits into two, resulting in two individuals who share the same genetic material. This is the key difference between fraternal twins and identical twins.
3.
What are the odds of having twins?
Correct Answer
C. 1 in 30
Explanation
The odds of having twins are 1 in 30. This means that for every 30 pregnancies, on average, one will result in the birth of twins. Twins can occur either through fraternal (dizygotic) or identical (monozygotic) twinning. Fraternal twins result from the release and fertilization of two separate eggs, while identical twins occur when a single fertilized egg splits into two embryos. The occurrence of twins can be influenced by various factors, including maternal age, family history, and assisted reproductive technologies.
4.
What are the chances that a triplet will be born prematurely?
Correct Answer
D. 90%
Explanation
The correct answer is 90%. This suggests that there is a high likelihood that a triplet will be born prematurely. Premature birth is defined as birth that occurs before 37 weeks of gestation. Triplets are considered a high-risk pregnancy, and multiple pregnancies often have a higher chance of resulting in premature birth due to various factors such as limited space in the womb and increased strain on the mother's body. Therefore, it is not surprising that the chances of triplets being born prematurely are relatively high, at 90%.
5.
How likely is it that there will be multiple births following fertility treatment?
Correct Answer
B. 20%
Explanation
The correct answer is 20% because fertility treatment increases the chances of multiple births, such as twins or triplets. However, it does not guarantee that multiple births will occur in every case. The likelihood of multiple births following fertility treatment is estimated to be around 20%, which means that out of 100 cases, approximately 20 cases may result in multiple births.
6.
The chances of having a multiple birth increases as __________ increases.
Correct Answer
age, number of pregnacies, height, weight
Explanation
The chances of having a multiple birth increases as age, number of pregnancies, height, and weight increases. This is because these factors are known to be associated with an increased likelihood of releasing multiple eggs during ovulation or having multiple embryos implant in the uterus. Older women tend to release more eggs during ovulation, while women who have had multiple pregnancies have a higher chance of releasing multiple eggs. Additionally, taller and heavier women may have more space in their uterus for multiple embryos to implant and develop.
7.
What nationality has the highest percentage of multiple births?
Correct Answer
C. African
Explanation
African women have the highest percentage of multiple births compared to other nationalities. This can be attributed to genetic factors and a higher likelihood of releasing multiple eggs during ovulation. Additionally, certain cultural and environmental factors may also contribute to the higher rate of multiple births among African women.
8.
What is the term for multiple births over 3?
Correct Answer
C. Supertwins
Explanation
The term "supertwins" refers to multiple births over 3. This term is commonly used to describe the occurrence of more than three babies being born at the same time, such as quadruplets, quintuplets, or even higher numbers. It is a colloquial term that highlights the exceptional nature of these multiple births.
9.
About how many extra calories should a mother consume per fetus?
Correct Answer
C. 300
Explanation
A mother should consume approximately 300 extra calories per fetus. This is because during pregnancy, the body requires additional energy to support the growth and development of the fetus. Consuming these extra calories helps ensure that both the mother and the fetus receive adequate nutrition. It is important for pregnant women to maintain a balanced and nutritious diet to support their own health and the healthy development of their baby.