Describe the process of gene expression, by which a gene affects the phenotype of an organism.

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Answer 1

Textbook Question

Chapter 17, Problem 17.1CR

Describe the process of gene expression, by which a gene affects the phenotype of an organism.

Expert Solution & Answer

Summary Introduction

To review: Gene expression affects the phenotype of an organism.

Concept introduction:

DNA is known as the blueprint of life as it controls gene expression. The genetic information of DNA is based on the nucleotide base sequences. These sequences are transcribed into mRNA triplets and are called codons. These mRNA triplet nucleotides are translated into polypeptide chains which code for specific proteins and enzymes. This is known as gene expression.

Explanation of Solution

DNA consists of genetic instructions in the form of gene sequences. It directs messenger RNA (mRNA) synthesis in the cell. During the formation of mRNA in a process which is known as transcription, each letter in the gene sequence is copied which codes for a particular amino acid. The polypeptide chain is synthesized on the basis of amino acid sequences in the reading frame. This process is known as translation. Specific proteins also known as functional gene products control the phenotypic traits in an individual such as eye color, hair color etc. These traits may also be controlled by cumulative action of many proteins.

Functional gene products are formed as a result of gene expression. There may be variation in the expression of the genes. Some genes are dominant over others which influence the appearance of the trait. For example, parents with blue eyes can have a child with brown eyes. This is because brown eye color trait is dominant over blue eye color.

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*Example 2: Tracing the path of an autosomal dominant trait Trait: Neurofibromatosis Forms of the trait: The dominant form is neurofibromatosis, caused by the production of an abnormal form of the protein neurofibromin. Affected individuals show spots of abnormal skin pigmentation and non-cancerous tumors that can interfere with the nervous system and cause blindness. Some tumors can convert to a cancerous form. i The recessive form is a normal protein - in other words, no neurofibromatosis.moovi A typical pedigree for a family that carries neurofibromatosis is shown below. Note that carriers are not indicated with half-colored shapes in this chart. Use the letter "N" to indicate the dominant neurofibromatosis allele, and the letter "n" for the normal allele. Nn nn nn 2 nn Nn A 3 N-

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Answer 2

Textbook Question

Chapter 17, Problem 17.1CR

Describe the process of gene expression, by which a gene affects the phenotype of an organism.

Expert Solution & Answer

Summary Introduction

To review: Gene expression affects the phenotype of an organism.

Concept introduction:

DNA is known as the blueprint of life as it controls gene expression. The genetic information of DNA is based on the nucleotide base sequences. These sequences are transcribed into mRNA triplets and are called codons. These mRNA triplet nucleotides are translated into polypeptide chains which code for specific proteins and enzymes. This is known as gene expression.

Explanation of Solution

DNA consists of genetic instructions in the form of gene sequences. It directs messenger RNA (mRNA) synthesis in the cell. During the formation of mRNA in a process which is known as transcription, each letter in the gene sequence is copied which codes for a particular amino acid. The polypeptide chain is synthesized on the basis of amino acid sequences in the reading frame. This process is known as translation. Specific proteins also known as functional gene products control the phenotypic traits in an individual such as eye color, hair color etc. These traits may also be controlled by cumulative action of many proteins.

Functional gene products are formed as a result of gene expression. There may be variation in the expression of the genes. Some genes are dominant over others which influence the appearance of the trait. For example, parents with blue eyes can have a child with brown eyes. This is because brown eye color trait is dominant over blue eye color.

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Answer 3

Textbook Question

Chapter 17, Problem 17.1CR

Describe the process of gene expression, by which a gene affects the phenotype of an organism.

Expert Solution & Answer

Summary Introduction

To review: Gene expression affects the phenotype of an organism.

Concept introduction:

DNA is known as the blueprint of life as it controls gene expression. The genetic information of DNA is based on the nucleotide base sequences. These sequences are transcribed into mRNA triplets and are called codons. These mRNA triplet nucleotides are translated into polypeptide chains which code for specific proteins and enzymes. This is known as gene expression.

Explanation of Solution

DNA consists of genetic instructions in the form of gene sequences. It directs messenger RNA (mRNA) synthesis in the cell. During the formation of mRNA in a process which is known as transcription, each letter in the gene sequence is copied which codes for a particular amino acid. The polypeptide chain is synthesized on the basis of amino acid sequences in the reading frame. This process is known as translation. Specific proteins also known as functional gene products control the phenotypic traits in an individual such as eye color, hair color etc. These traits may also be controlled by cumulative action of many proteins.

Functional gene products are formed as a result of gene expression. There may be variation in the expression of the genes. Some genes are dominant over others which influence the appearance of the trait. For example, parents with blue eyes can have a child with brown eyes. This is because brown eye color trait is dominant over blue eye color.

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Answer 4

Textbook Question

Chapter 17, Problem 17.1CR

Describe the process of gene expression, by which a gene affects the phenotype of an organism.

Expert Solution & Answer

Summary Introduction

To review: Gene expression affects the phenotype of an organism.

Concept introduction:

DNA is known as the blueprint of life as it controls gene expression. The genetic information of DNA is based on the nucleotide base sequences. These sequences are transcribed into mRNA triplets and are called codons. These mRNA triplet nucleotides are translated into polypeptide chains which code for specific proteins and enzymes. This is known as gene expression.

Explanation of Solution

DNA consists of genetic instructions in the form of gene sequences. It directs messenger RNA (mRNA) synthesis in the cell. During the formation of mRNA in a process which is known as transcription, each letter in the gene sequence is copied which codes for a particular amino acid. The polypeptide chain is synthesized on the basis of amino acid sequences in the reading frame. This process is known as translation. Specific proteins also known as functional gene products control the phenotypic traits in an individual such as eye color, hair color etc. These traits may also be controlled by cumulative action of many proteins.

Functional gene products are formed as a result of gene expression. There may be variation in the expression of the genes. Some genes are dominant over others which influence the appearance of the trait. For example, parents with blue eyes can have a child with brown eyes. This is because brown eye color trait is dominant over blue eye color.

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Answer 5

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Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

To review: Gene expression affects the phenotype of an organism.

Concept introduction:

DNA is known as the blueprint of life as it controls gene expression. The genetic information of DNA is based on the nucleotide base sequences. These sequences are transcribed into mRNA triplets and are called codons. These mRNA triplet nucleotides are translated into polypeptide chains which code for specific proteins and enzymes. This is known as gene expression.

Explanation of Solution

DNA consists of genetic instructions in the form of gene sequences. It directs messenger RNA (mRNA) synthesis in the cell. During the formation of mRNA in a process which is known as transcription, each letter in the gene sequence is copied which codes for a particular amino acid. The polypeptide chain is synthesized on the basis of amino acid sequences in the reading frame. This process is known as translation. Specific proteins also known as functional gene products control the phenotypic traits in an individual such as eye color, hair color etc. These traits may also be controlled by cumulative action of many proteins.

Functional gene products are formed as a result of gene expression. There may be variation in the expression of the genes. Some genes are dominant over others which influence the appearance of the trait. For example, parents with blue eyes can have a child with brown eyes. This is because brown eye color trait is dominant over blue eye color.

Answer 8

Expert Solution & Answer

Summary Introduction

To review: Gene expression affects the phenotype of an organism.

Concept introduction:

DNA is known as the blueprint of life as it controls gene expression. The genetic information of DNA is based on the nucleotide base sequences. These sequences are transcribed into mRNA triplets and are called codons. These mRNA triplet nucleotides are translated into polypeptide chains which code for specific proteins and enzymes. This is known as gene expression.

Explanation of Solution

DNA consists of genetic instructions in the form of gene sequences. It directs messenger RNA (mRNA) synthesis in the cell. During the formation of mRNA in a process which is known as transcription, each letter in the gene sequence is copied which codes for a particular amino acid. The polypeptide chain is synthesized on the basis of amino acid sequences in the reading frame. This process is known as translation. Specific proteins also known as functional gene products control the phenotypic traits in an individual such as eye color, hair color etc. These traits may also be controlled by cumulative action of many proteins.

Functional gene products are formed as a result of gene expression. There may be variation in the expression of the genes. Some genes are dominant over others which influence the appearance of the trait. For example, parents with blue eyes can have a child with brown eyes. This is because brown eye color trait is dominant over blue eye color.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

To review: Gene expression affects the phenotype of an organism.

Concept introduction:

DNA is known as the blueprint of life as it controls gene expression. The genetic information of DNA is based on the nucleotide base sequences. These sequences are transcribed into mRNA triplets and are called codons. These mRNA triplet nucleotides are translated into polypeptide chains which code for specific proteins and enzymes. This is known as gene expression.

Answer 12

Explanation of Solution

DNA consists of genetic instructions in the form of gene sequences. It directs messenger RNA (mRNA) synthesis in the cell. During the formation of mRNA in a process which is known as transcription, each letter in the gene sequence is copied which codes for a particular amino acid. The polypeptide chain is synthesized on the basis of amino acid sequences in the reading frame. This process is known as translation. Specific proteins also known as functional gene products control the phenotypic traits in an individual such as eye color, hair color etc. These traits may also be controlled by cumulative action of many proteins.

Functional gene products are formed as a result of gene expression. There may be variation in the expression of the genes. Some genes are dominant over others which influence the appearance of the trait. For example, parents with blue eyes can have a child with brown eyes. This is because brown eye color trait is dominant over blue eye color.

Answer 13

Ch. 17.1 - Prob. 1CC Ch. 17.1 - What polypeptide product would you expect from a...Ch. 17.1 - Prob. 3CC Ch. 17.2 - MAKE CONNECTIONS In a research artide about...Ch. 17.2 - What enables RNA polymerase to start transcribing...Ch. 17.2 - WHAT IF? Suppose X-rays caused a sequence change...Ch. 17.3 - There are about 20,000 human protein-coding genes....Ch. 17.3 - How is RNA splicing similar to how you would watch...Ch. 17.3 - Prob. 3CC Ch. 17.4 - What two processes ensure that the correct amino...

Describe the process of gene expression, by which a gene affects the phenotype of an organism.

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