Question

Identical twins come from a single egg that split into two
embryos, and fraternal twins are from separate fertilized eggs.
Also, identical twins must be of the same sex and the sexes are
equally likely, and sexes of fraternal twins are equally likely.
If a pregnant woman is told that she will give birth to fraternal
twins, what is the probability that she will have one child of
each sex? Use the data table below to find the probability. Sexes
of Twins boy/boy boy/girl girl/boy girl/girl Identical Twins 6
0 0 6 Fraternal Twins 2 4 4 2

Answer #1

**Answer:-**

**Given
That:-**

Identical twins come from a single egg that split into twoembryos, and fraternal twins are from separate fertilized eggs.Also, identical twins must be of the same sex and the sexes are equally likely, and sexes of fraternal twins are equally likely. If a pregnant woman is told that she will give birth to fraternaltwins, what is the probability that she will have one child of each sex? Use the data table below to find the probability.

Boy/Boy | Boy/Girl | Girl/Boy | Girl/Girl | Total | |

Identical Twins | 6 | 0 | 0 | 6 | 12 |

Fraternal Twins | 2 | 4 | 4 | 2 | 12 |

Total | 8 | 4 | 4 | 8 | 24 |

P(Fraternal Twins with different sex)

=P(Fraternal Twins Boy/Girl) + P(Fraternal Twins Girl/Boy)

= 4/24 + 4/24

= 1/3

**P(Fraternal Twins with different sex) =
0.33**

Therefore This is the required Probability.

**Plz like it..,**

Identical twins are formed from one fertilized egg, but fraternal
twins form from two different fertilized eggs. Apply your knowledge
of mitosis and meiosis to explain the genetic differences between
identical and fraternal twins.

Identical twins are produced from the same sperm and egg (which
splits after the first mitotic division), whereas fraternal twins
are produced from separate sperm and separate egg cells.
If two parents, one with brown eyes (a dominant trait)
and the other with blue eyes (the recessive trait) produce one twin
boy with blue eyes, what is the probability that a fraternal twin
will transmit the blue eye allele to his or her
offspring?
Please give your answer as a...

DIRECTIONS: This is an open book, take home examination. You may
look up the answers and discuss them, if you wish. The Multiple
Choice questions will be worth 1 point each and the essay questions
will be worth 25 points each. This examination is over Chapters 6
through 9. MULTIPLE CHOICE: 1. During Piaget's concrete operational
stage, children a. are more egocentric than they were during the
preoperational period. b. often confuse appearances with reality.
c. are unable to reverse...

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