When a fertilized egg splits or divides in half after conception, the result is fraternal twins.

Question

BlackTom AI · Accepted Answer

The statement presented asks whether a fertilized egg splitting or dividing in half after conception yields fraternal twins.
Option 1: True. This would claim that splitting a single fertilized egg results in fraternal twins. However, splitting the zygote creates identical (monozygotic) twins, not fraternal twins, because the two resulting embryos originate from the same fertilized egg and share nearly identical genetic material.
Option 2: False. This is the accurate assessment because when an embryo splits, the two individuals come from the same fertilized egg and end up genetically nearly identical, which characterizes identical twins. Fraternal twins arise when two separate eggs are fertilized by two separate sperm, leading to two genetically distinct individuals.
In contrast to fraternal twins, identical twins form when a single zygote splits; the concept of splitting after conception directly matches the mechanism of monozygotic twinning, not dizygotic twinning. Thus, the claim that splitting produces fraternal twins misstates the underlying biology of twinning.

HLTED-1-21177-S25 Quiz Ch 9

When a fertilized egg splits or divides in half after conception, the result is fraternal twins.

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HLTED-1-21177-S25 Quiz Ch 9

When a fertilized egg splits or divides in half after conception, the result is fraternal twins.

查看解析

登录即可查看完整答案

类似问题

Jack and Jill are _____ twins. They are the result of _____.

Question at position 3 What are “dizygotic twins”?Twins who developed from a single fertilized eggTwins who developed from different fertilized eggsTwins who were reared by the same familyTwins who were reared by different families

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

更多留学生实用工具

希望你的学习变得更简单

Jack and Jill are _ twins. They are the result of _.