DNA is a genetic material consisting of a long stretch of nucleotide sequences with 2 m length. Chromosomes carry genetic or hereditary information from parents to offspring. Homologous chromosomes carry two forms of a gene in the same locus; these are known as alleles. A complete set of genetic materials (both coding and non-coding regions of DNA) of an organism is called a genome. The total human genome consists of about 3.1 billion base pairs and nearly 20,000 protein coding genes.

Question

Want to see the full answer?

Answer 1

Question

Chapter 4.4, Problem 18BYGO

Summary Introduction

Introduction:

DNA is a genetic material consisting of a long stretch of nucleotide sequences with 2 m length. Chromosomes carry genetic or hereditary information from parents to offspring. Homologous chromosomes carry two forms of a gene in the same locus; these are known as alleles. A complete set of genetic materials (both coding and non-coding regions of DNA) of an organism is called a genome. The total human genome consists of about 3.1 billion base pairs and nearly 20,000 protein coding genes.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

What is the genotype of a person who has sickle cell disorder and provide a key that identifies what each allele in the genotype represents. (For example, B might represent the normal allele and b might represent the disordered allele) answer can be basic but understandable.

In humans, hemophilia is a sex-linked trait. Females can be normal, carriers, or have the disease. Males will either have the disease or not (but they won’t ever be carriers). X H X H = female, non-hemophilic X H X h = female, carrier X h X h = female, hemophilia X H Y = male, non-hemophilic X h Y= male, hemophiliac a.) Show the cross of a man who has hemophilia with a woman who is a carrier. What is the probability that their children will have the disease? b.) A woman who is a carrier marries a non-hemophilic man. Show the cross. What is the probability that their children will have hemophilia? What sex will a child in the family with hemophilia be? c.) A woman who has hemophilia marries a non-hemophilic man. How many of their children will have hemophilia, and what is their sex?

A homozygous recessive allele, aa, is responsible for albinism. Humans can exhibit this phenotype. In each of the following cases, determine the possible genotypes of the mother and father, and of their children: (a) Both parents have normal phenotypes; some of their children are albino and others are unaffected: (b) Both parents are albino and have only albino children: (c) The woman is unaffected, the man is albino, and they have one albino child and three unaffected children: at a busy hospital. The son of the first couple has hemophilia, a recessive, X-linked Two mothers give birth to sor disease. Neither parent from couple #1 has the disease. The second couple has an unaffected son, despite the fact that the father has hemophilia. The two couples challenge the hospital in court, claiming their babies must have beer swapped at birth. You must advise as to whether or not the sons could have been swapped. What would you say? 5. In a dispute over parentage, the mother of a child with…