Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

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Chapter 52, Problem 1A

Summary Introduction

Introduction:

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

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During the first trimester, hCG produced from the chorion maintains the corpus luteum. What is the purpose of maintaining the corpus luteum? Select one: a. The corpus luteum produces relaxin, which thickens the endometrium. b. The corpus luteum ensures that the endometrium does not break down during the first trimester. c. The corpus luteum supports the formation of the placenta. d. The chorion forms the fetal part of the placenta, and the corpus luteum supports the maternal part of the placenta.

Your cousin just had twins. She tells you that twinning occurs when two sperm fertilize the same egg. You reply when two sperm fertilize the same egg. What will be your reply? a) yes, she is right, that is the most common source of twinning b) no, only one sperm survives passage through the uterine cervix, so two sperm are never present at fertilization c) no, cortical granules are used to prevent additional sperm penetration d) no, twinning occurs when unfertilized eggs divide spontaneously and thus is parthenogenic in nature

Ken Doll isn't very smart. He and Barbie are not trying to have a baby. Ken is confused about a few details and asked his friend GI Joe why Barbie became pregnant. "Look, we did the deed on Monday and she didn't ovulate until Thursday. I should have been safe and my 'little swimmers' should have been out of there by then." How should GI Joe explain the necessary information to Ken?

Answer 2

Question

Chapter 52, Problem 1A

Summary Introduction

Introduction:

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

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Answer 3

Question

Chapter 52, Problem 1A

Summary Introduction

Introduction:

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

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Answer 4

Question

Chapter 52, Problem 1A

Summary Introduction

Introduction:

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

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Answer 5

Chapter 52, Problem 1A

Summary Introduction

Introduction:

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

Answer 6

Chapter 52, Problem 1A

Summary Introduction

Introduction:

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

Answer 7

Chapter 52, Problem 1A

Summary Introduction

Introduction:

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

Answer 8

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Answer 11

Ch. 52.1 - Describe the events involved in fertilization.Ch. 52.1 - Prob. 2LO Ch. 52.2 - Prob. 1LO Ch. 52.2 - Prob. 2LO Ch. 52.2 - Prob. 3LO Ch. 52.3 - Prob. 1LO Ch. 52.3 - Compare gastrulation in different animals.Ch. 52.3 - Name the extraembryonic membranes in amniotes.Ch. 52.4 - Prob. 1LO Ch. 52.4 - Prob. 2LO

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

Solution Summary: The author explains that the cortical granules present in egg cytoplasm are used to prevent additional sperm penetration.

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Introduction:

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

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Chapter 52 Solutions

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

Solution Summary: The author explains that the cortical granules present in egg cytoplasm are used to prevent additional sperm penetration.

Videos

Introduction: Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).

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Chapter 52 Solutions

Introduction:

Fertilization is the fusion of haploid male gamete (sperm) with haploid female gamete (ovum) that results in the formation of diploid zygote. Twins are the product of two offsprings from same zygote. Twins can be identical (monozygotic twins) or fraternal (dizygotic twins).