The ploidy of individuals with Down syndrome. Introduction: Down syndrome is a genetic disorder and is regarded as a birth defect. It is mainly caused because of the presence of an extra copy of chromosome 21. Symptoms such as mild intellectual disability and physical growth delays are associated with Down’s syndrome. Developmental disorders are also seen in individuals with Down’s syndrome.

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Chapter 25, Problem 25.7PS

Summary Introduction

To determine: The ploidy of individuals with Down syndrome.

Introduction: Down syndrome is a genetic disorder and is regarded as a birth defect. It is mainly caused because of the presence of an extra copy of chromosome 21. Symptoms such as mild intellectual disability and physical growth delays are associated with Down’s syndrome. Developmental disorders are also seen in individuals with Down’s syndrome.

Summary Introduction

To explain: The reason due to which a modified chromosome causes Down syndrome in children.

Introduction: Birth defect refers to a significant abnormality which is present at the birth of an individual. Down syndrome is one of the examples of genetic birth defect. Down syndrome is caused due to an accident during cell division. Down syndrome is a genetic disorder and it is mainly caused due to the presence of an extra copy of chromosome 21.

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Macmillan Learning across generations. Place the events in the order necessary for an epigenetic modification to be inherited in the next generation. $ 4 900 F4 Certain CpG methylation sites are not erased during gametogenesis or embryogenesis. DNA methyltransferase recognizes and binds CpG sites on DNA. A methyl group is added to the cytosine residue of the DNA sequence. DNA methyltransferase maintains the methylation pattern on both DNA strands. % Recent studies have found instances of transgenerational inheritance of epigenetic traits in humans (Relton et al., 2012 already possess their eggs at birth whereas males do not produce sperm until nuberty For enigenetic modifications to 5 F5 ^ Methylated CpG sites on one inherited DNA strand 6 Epigenetic silencing passed to offspring F6 MacBook Air Answer Bank & 7 F7 * 8 DII. F8 DD F9 F10 J F11 U

Think Critically. Provide a concise explanation of your answer. A mutation on an autosome causes a particular protein to be overproduced, and the excess protein accumulates in the liver and damages it. Would the resulting disorder most likely be inherited in an autosomal dominant or recessive pattern? Expression of the SYR gene on the Y chromosome gives rise to the male phenotype in humans. What do you think the inheritance pattern of SYR alleles is called? 22q11.2 deletion syndrome, also called DiGeorge syndrome, causes atypical parathyroid glands, a heart defect, and an underdeveloped thymus gland. About 85% of patients have a microdeletion of part of chromosome 22. A girl, her mother, and a maternal aunt have very mild DiGeorge syndrome. They all have a reciprocal translocation of chromosomes 22 and 2. How can a microdeletion and a translocation cause the same symptoms? Why were the people with the translocation less severely affected than the people with microdeletion? What other…

Please keep it short. Don't add a lot of information, thanks! - Explain why it is important that meiosis converts diploid cells to haploid. Then briefly explain how meiosis does that, makes a diploid cell haploid.

Answer 2

Question

Chapter 25, Problem 25.7PS

Summary Introduction

To determine: The ploidy of individuals with Down syndrome.

Introduction: Down syndrome is a genetic disorder and is regarded as a birth defect. It is mainly caused because of the presence of an extra copy of chromosome 21. Symptoms such as mild intellectual disability and physical growth delays are associated with Down’s syndrome. Developmental disorders are also seen in individuals with Down’s syndrome.

Summary Introduction

To explain: The reason due to which a modified chromosome causes Down syndrome in children.

Introduction: Birth defect refers to a significant abnormality which is present at the birth of an individual. Down syndrome is one of the examples of genetic birth defect. Down syndrome is caused due to an accident during cell division. Down syndrome is a genetic disorder and it is mainly caused due to the presence of an extra copy of chromosome 21.

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Answer 3

Question

Chapter 25, Problem 25.7PS

Summary Introduction

To determine: The ploidy of individuals with Down syndrome.

Introduction: Down syndrome is a genetic disorder and is regarded as a birth defect. It is mainly caused because of the presence of an extra copy of chromosome 21. Symptoms such as mild intellectual disability and physical growth delays are associated with Down’s syndrome. Developmental disorders are also seen in individuals with Down’s syndrome.

Summary Introduction

To explain: The reason due to which a modified chromosome causes Down syndrome in children.

Introduction: Birth defect refers to a significant abnormality which is present at the birth of an individual. Down syndrome is one of the examples of genetic birth defect. Down syndrome is caused due to an accident during cell division. Down syndrome is a genetic disorder and it is mainly caused due to the presence of an extra copy of chromosome 21.

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Answer 4

Question

Chapter 25, Problem 25.7PS

Summary Introduction

To determine: The ploidy of individuals with Down syndrome.

Introduction: Down syndrome is a genetic disorder and is regarded as a birth defect. It is mainly caused because of the presence of an extra copy of chromosome 21. Symptoms such as mild intellectual disability and physical growth delays are associated with Down’s syndrome. Developmental disorders are also seen in individuals with Down’s syndrome.

Summary Introduction

To explain: The reason due to which a modified chromosome causes Down syndrome in children.

Introduction: Birth defect refers to a significant abnormality which is present at the birth of an individual. Down syndrome is one of the examples of genetic birth defect. Down syndrome is caused due to an accident during cell division. Down syndrome is a genetic disorder and it is mainly caused due to the presence of an extra copy of chromosome 21.

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Answer 5

Chapter 25, Problem 25.7PS

Summary Introduction

To determine: The ploidy of individuals with Down syndrome.

Introduction: Down syndrome is a genetic disorder and is regarded as a birth defect. It is mainly caused because of the presence of an extra copy of chromosome 21. Symptoms such as mild intellectual disability and physical growth delays are associated with Down’s syndrome. Developmental disorders are also seen in individuals with Down’s syndrome.

Summary Introduction

To explain: The reason due to which a modified chromosome causes Down syndrome in children.

Introduction: Birth defect refers to a significant abnormality which is present at the birth of an individual. Down syndrome is one of the examples of genetic birth defect. Down syndrome is caused due to an accident during cell division. Down syndrome is a genetic disorder and it is mainly caused due to the presence of an extra copy of chromosome 21.

Answer 6

Chapter 25, Problem 25.7PS

Summary Introduction

To determine: The ploidy of individuals with Down syndrome.

Introduction: Down syndrome is a genetic disorder and is regarded as a birth defect. It is mainly caused because of the presence of an extra copy of chromosome 21. Symptoms such as mild intellectual disability and physical growth delays are associated with Down’s syndrome. Developmental disorders are also seen in individuals with Down’s syndrome.

Answer 7

Chapter 25, Problem 25.7PS

Summary Introduction

To determine: The ploidy of individuals with Down syndrome.

Introduction: Down syndrome is a genetic disorder and is regarded as a birth defect. It is mainly caused because of the presence of an extra copy of chromosome 21. Symptoms such as mild intellectual disability and physical growth delays are associated with Down’s syndrome. Developmental disorders are also seen in individuals with Down’s syndrome.

Answer 8

Summary Introduction

To explain: The reason due to which a modified chromosome causes Down syndrome in children.

Introduction: Birth defect refers to a significant abnormality which is present at the birth of an individual. Down syndrome is one of the examples of genetic birth defect. Down syndrome is caused due to an accident during cell division. Down syndrome is a genetic disorder and it is mainly caused due to the presence of an extra copy of chromosome 21.

Answer 9

Summary Introduction

To explain: The reason due to which a modified chromosome causes Down syndrome in children.

Introduction: Birth defect refers to a significant abnormality which is present at the birth of an individual. Down syndrome is one of the examples of genetic birth defect. Down syndrome is caused due to an accident during cell division. Down syndrome is a genetic disorder and it is mainly caused due to the presence of an extra copy of chromosome 21.

Answer 10

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Answer 13

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Solution Summary: The author explains that Down syndrome is a genetic disorder caused by an extra copy of chromosome 21.

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