The cause and symptom of Down syndrome. Introduction: Humans cell contain 46 chromosome (2n) and are diploid in nature but at the time of fertilization only 23 (n) chromosome is receive by mother and 23 (n) chromosome is receive by father to form a zygote by the process of meiosis. Zygote is formed by the transfer of male gamete (sperm) and female gamete (ova).The ova and sperm are haploid and form a diploid zygote (2n). Zygote receives 46 chromosomes. Some humans are born with abnormalities as they receive abnormal chromosomal number in their cell. Abnormal chromosome is formed when chromosome fails to separate during meiosis and is known as non- disjunction. This nondisjunction causes a trisomy condition called Down syndrome. In which extra set of chromosome is present in chromosome 21 and total chromosome number is 47.

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Answer 1

Question

Chapter 9.4, Problem 2LO

Summary Introduction

To analyze:

The cause and symptom of Down syndrome.

Introduction:

Humans cell contain 46 chromosome (2n) and are diploid in nature but at the time of fertilization only 23 (n) chromosome is receive by mother and 23 (n) chromosome is receive by father to form a zygote by the process of meiosis. Zygote is formed by the transfer of male gamete (sperm) and female gamete (ova).The ova and sperm are haploid and form a diploid zygote (2n).

Zygote receives 46 chromosomes. Some humans are born with abnormalities as they receive abnormal chromosomal number in their cell. Abnormal chromosome is formed when chromosome fails to separate during meiosis and is known as non- disjunction. This nondisjunction causes a trisomy condition called Down syndrome. In which extra set of chromosome is present in chromosome 21 and total chromosome number is 47.

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Answer 2

Question

Chapter 9.4, Problem 2LO

Summary Introduction

To analyze:

The cause and symptom of Down syndrome.

Introduction:

Humans cell contain 46 chromosome (2n) and are diploid in nature but at the time of fertilization only 23 (n) chromosome is receive by mother and 23 (n) chromosome is receive by father to form a zygote by the process of meiosis. Zygote is formed by the transfer of male gamete (sperm) and female gamete (ova).The ova and sperm are haploid and form a diploid zygote (2n).

Zygote receives 46 chromosomes. Some humans are born with abnormalities as they receive abnormal chromosomal number in their cell. Abnormal chromosome is formed when chromosome fails to separate during meiosis and is known as non- disjunction. This nondisjunction causes a trisomy condition called Down syndrome. In which extra set of chromosome is present in chromosome 21 and total chromosome number is 47.

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Answer 3

Question

Chapter 9.4, Problem 2LO

Summary Introduction

To analyze:

The cause and symptom of Down syndrome.

Introduction:

Humans cell contain 46 chromosome (2n) and are diploid in nature but at the time of fertilization only 23 (n) chromosome is receive by mother and 23 (n) chromosome is receive by father to form a zygote by the process of meiosis. Zygote is formed by the transfer of male gamete (sperm) and female gamete (ova).The ova and sperm are haploid and form a diploid zygote (2n).

Zygote receives 46 chromosomes. Some humans are born with abnormalities as they receive abnormal chromosomal number in their cell. Abnormal chromosome is formed when chromosome fails to separate during meiosis and is known as non- disjunction. This nondisjunction causes a trisomy condition called Down syndrome. In which extra set of chromosome is present in chromosome 21 and total chromosome number is 47.

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Answer 4

Question

Chapter 9.4, Problem 2LO

Summary Introduction

To analyze:

The cause and symptom of Down syndrome.

Introduction:

Humans cell contain 46 chromosome (2n) and are diploid in nature but at the time of fertilization only 23 (n) chromosome is receive by mother and 23 (n) chromosome is receive by father to form a zygote by the process of meiosis. Zygote is formed by the transfer of male gamete (sperm) and female gamete (ova).The ova and sperm are haploid and form a diploid zygote (2n).

Zygote receives 46 chromosomes. Some humans are born with abnormalities as they receive abnormal chromosomal number in their cell. Abnormal chromosome is formed when chromosome fails to separate during meiosis and is known as non- disjunction. This nondisjunction causes a trisomy condition called Down syndrome. In which extra set of chromosome is present in chromosome 21 and total chromosome number is 47.

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Answer 5

Chapter 9.4, Problem 2LO

Summary Introduction

To analyze:

The cause and symptom of Down syndrome.

Introduction:

Humans cell contain 46 chromosome (2n) and are diploid in nature but at the time of fertilization only 23 (n) chromosome is receive by mother and 23 (n) chromosome is receive by father to form a zygote by the process of meiosis. Zygote is formed by the transfer of male gamete (sperm) and female gamete (ova).The ova and sperm are haploid and form a diploid zygote (2n).

Zygote receives 46 chromosomes. Some humans are born with abnormalities as they receive abnormal chromosomal number in their cell. Abnormal chromosome is formed when chromosome fails to separate during meiosis and is known as non- disjunction. This nondisjunction causes a trisomy condition called Down syndrome. In which extra set of chromosome is present in chromosome 21 and total chromosome number is 47.

Answer 6

Chapter 9.4, Problem 2LO

Summary Introduction

To analyze:

The cause and symptom of Down syndrome.

Introduction:

Humans cell contain 46 chromosome (2n) and are diploid in nature but at the time of fertilization only 23 (n) chromosome is receive by mother and 23 (n) chromosome is receive by father to form a zygote by the process of meiosis. Zygote is formed by the transfer of male gamete (sperm) and female gamete (ova).The ova and sperm are haploid and form a diploid zygote (2n).

Zygote receives 46 chromosomes. Some humans are born with abnormalities as they receive abnormal chromosomal number in their cell. Abnormal chromosome is formed when chromosome fails to separate during meiosis and is known as non- disjunction. This nondisjunction causes a trisomy condition called Down syndrome. In which extra set of chromosome is present in chromosome 21 and total chromosome number is 47.

Answer 7

Chapter 9.4, Problem 2LO

Summary Introduction

To analyze:

The cause and symptom of Down syndrome.

Introduction:

Humans cell contain 46 chromosome (2n) and are diploid in nature but at the time of fertilization only 23 (n) chromosome is receive by mother and 23 (n) chromosome is receive by father to form a zygote by the process of meiosis. Zygote is formed by the transfer of male gamete (sperm) and female gamete (ova).The ova and sperm are haploid and form a diploid zygote (2n).

Zygote receives 46 chromosomes. Some humans are born with abnormalities as they receive abnormal chromosomal number in their cell. Abnormal chromosome is formed when chromosome fails to separate during meiosis and is known as non- disjunction. This nondisjunction causes a trisomy condition called Down syndrome. In which extra set of chromosome is present in chromosome 21 and total chromosome number is 47.

Answer 8

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Answer 11

Ch. 9.1 - Explain the purpose of meiosis Ch. 9.1 - Prob. 2LO Ch. 9.1 - Prob. 3LO Ch. 9.1 - Prob. 4LO Ch. 9.1 - Prob. 1CYP Ch. 9.1 - Prob. 2CYP Ch. 9.1 - Prob. 3CYP Ch. 9.1 - Prob. 4CYP Ch. 9.1 - Prob. 1A Ch. 9.1 - Prob. 2A

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