Asked by McKayla Barton on Jun 20, 2024
Verified
Twins formed by the fertilization of two ova by two sperm are
A) fraternal.
B) the least common type of twins.
C) genetically the same.
D) more likely in first pregnancies than in later ones.
Fraternal
pertaining to brothers; showing a close and supportive relationship like that between brothers.
Fertilization
the process of a sperm cell uniting with an egg cell, resulting in the formation of a zygote and the beginning of pregnancy.
Ova
The female reproductive cells in animals and plants; egg cells in humans.
- Identify the differences between monozygotic and dizygotic twins, gaining insight into the elements influencing their development.
Verified Answer
MS
Muhammad Shoaib AsimJun 22, 2024
Final Answer :
A
Explanation :
Twins formed by the fertilization of two ova by two sperm are fraternal, meaning they are not genetically identical. Option B is incorrect because fraternal twins are actually the most common type of twins. Option C is also incorrect because fraternal twins are not genetically the same. Option D is also incorrect because the likelihood of having twins does not depend on whether it is a first pregnancy or later pregnancy.
Learning Objectives
- Identify the differences between monozygotic and dizygotic twins, gaining insight into the elements influencing their development.