Why are multiple copies of the X chromosome tolerated?

Q: If a mother snail is heterozygous, Dd, which gene products will the egg cell receive?

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: Define the term maternal effect genes, and explain why the protein products of some of these genes…

A: Genes come in pairs and are responsible for the inheritance and expression of the associated…

Q: Using a particular family as a model, how do you distinguish nuclear from extrachromosomal…

A: Distinguish nuclear inheritance from extrachromosomal inheritance.

Q: If a set of chromosomes is one copy of each kind of chromosome, how many sets are in a human…

A: The formation of male and female gametes required meiotic cell division, in which the parent germ…

Q: Describe the process of X-chromosome inactivation in mammals

A: X-chromosome inactivation, also known as lyonization, is a process by which one of the copies of the…

Q: a. What letters are used to represent the short andlong arms of human chromosomes?b. Sketch a…

A: The human chromosomes have two arms; one short and other long. These arms are separated from each…

Q: Explain the X-Linkage in Drosophila ?

A: X-linkage is the sex linkage that involves X chromosome. X linkage is the genetic factor or gene…

Q: A. Give 7 genes located on X chromosomes and provide 2 protein products of each gene. B. Give 4…

A: Question: A. Give 7 genes located on the X chromosome and provide 2 protein products of each gene.…

Q: Why are males  more prone to having x-linked recessive disorders? a. Because the y chromosome is…

A:

Q: What is a sex-limited gene? a. A gene on the X chromosome b. A gene on the Y chromosome c. A gene…

A: Alleles are defined as the variant forms of a particular gene occupying the same locus on a…

Q: Provide a proof that a different phenotype can be produced from the same genotype. What are the…

A: A phenotype is a set of observable characteristics about a person, such as height, eye colour, and…

Q: Summerize the functional relationship and their roles in inheritance of DNA, genes, alleles, and…

A: The alleles are defined as the similar form of a gene. Each gene has a pair of allele each inherited…

Q: A new mutation that occurs in which type of cell can be passed | on to offspring?

A: The mutation in egg cell or sperm cell can be passed to the offspring If a mutation that occur in…

Q: Explain the process of X-Chromosome Inactivation in Mammalian Females.

A: Mammals are the vertebrate having mammary glands as one of their main characteristics which…

Q: What are chromosomal disorders? Also gives a suitable example.

A: The chromosomes are thread-like structure located in the nuclei of both plant and animal cells. They…

Q: A fertilized egg will develop into a boy if it receives a/n_____________chromosome from its father.

A: Ans: Fertilization: It is the process in which haploid gamets such as eggs and sperms are fused in…

Q: how meiosis and fertilization can result in a trait not expressed in both parents being expressed in…

A: .The process of fusion of male and female gametes in the form of sperms and egg respectively is…

Q: Compare and contrast the four types of changes in chromosomestructure?

A: In nucleus of a cell – DNA is present in form of chromosomes. These are compact structure of DNA…

Q: Part a. Explain the inheritance pattern that results in the fur coloration of a calico cat and why…

A:

Q: If a mother snail is heterozygous, Dd, which gene products will the oocyte receive?

A: The mom's genotype specifically influences her offspring's phenotype Broken rule: gene expression an…

Q: Explain about inactivated X chromosome in female mammalian cells ?

A: The sex of the offspring is generally genetically determined by the genes present on the sex…

Q: In mice, the Sry gene is located on the Y chromosome very close to one of the pseudoautosomal…

A: The chromosomes are the genetic material present in the nucleus of the cell which is a condensed…

Q: how would the chromosomes content of the eye cell of a man compare with the chromosome content of…

A: Chromosomes are thread like structures that are the condensed form of DNA. They constitute the…

Q: Which is NOT a way that deletions can cause abnormal phenotypes?

A: Haploinsufficiency  situation arrives due to total level of gene product/ a particular protein…

Q: What is a Barr body? How is its structure different from that ofother chromosomes in the cell? How…

A: Chromosomes are the carrier of genetic material deoxyribonucleic acid (DNA). They are coiled in…

Q: A)If a mutation is present in a cell undergoing mitosis, which cells will it be passed on to? If a…

A: Genetic material is nothing but the sequence of nucleic acids which is called as DNA. It contains…

Q: Explain how X-chromosome inactivation may affect thephenotype of female mammals

A: The inactivation center called XCI is responsible for the inactivation of X-chromosomes. This center…

Q: The nucleus of udder cell which was used to develop Dolly was taken from_______.a) Six year old Finn…

A: Dolly was the first cloned animal that was created by injecting the nucleus from the sheep udder…

Q: A) Hoe many cells are produced by the end of meiosis II? B) Are the cells produced at the end of…

A: Meiosis is a type of cell division. It is the mode of cell division in which one cell divided into…

Q: According to the Lyon hypothesis,a. one of the X chromosomes is converted to a Barr body insomatic…

A: Lyon hypothesis, proposed by Mary Lyon states that the random inactivation of the X chromosome in…

Q: Why is drosophila aconvenient animal for thestudy of linked genes?

A: Genetics is the branch of biology, which deals with the study of genes, their pattern of…

Q: describe how the Drosophila group and others analyzed the transmissionpatterns of genes on the same…

A: Genetic linkage describes the way during which two genes that are located on the brink of one…

Q: Give the F1 genotypes of  GgXHXh    and      GgXhY

A: Genotype is the representation of genetic constitution in the form of allelic combinations.…

Q: а. Researchers have found that the gene that codes for APP is on which chromosome? b. Does everyone…

A: Answer: APP GENE = This gene provides instructions for making protein called amyloid precursor…

Q: Which is a FALSE statement about X inactivation in mammalian females? O Females that are…

A: X-chromosome inactivation is the transcriptional silencing of one X chromosome in female mammalian…

Q: Determines Sex in Drosophila?

A: Drosophila melanogaster is a common fruit fly. It is most common subject used in majority of genetic…

Q: Describe how different types of chromosomalrearrangements alter gene expression patterns orgenerate…

A: Chromosomal rearrangement is a that is mutation caused by a breakage in the deoxyribonucleic acid…

Q: In humans, the AR gene is located on the X chromosome. If a person who is XY has a complete deletion…

A: Androgen is a steroid hormone secreted in males that bind with the androgen receptors located on…

Q: a. What is the diploid number of chromosomes for a human? b. What is the haploid number of…

A: Introduction Cell division is the process by which a parent cell divides into two or more daughter…

Q: a) Which two genes are linked? Show or explain how you know. b) How far apart are those genes?

A: …

Q: how do you distinguish nuclear from extrachromosomal inheritance? Give a specific example.

A:

Q: Which changes in chromosome structure cause a change in thetotal amount of genetic material, and…

A: Chromosomal aberrations are changes in the number and arrangement of genes in the chromosomes. They…

Q: The idea that sperm carry more mutations thanoocytes makes sense. Explain how?

A: Mutation is defined as the sudden inheritable change that occurs in the DNA sequence.  It is caused…

Q: Explain how polytene chromosomes of Drosophila are produced and how they form a six-armed structure?

A: Polytene chromosomes are large chromosomes that have thousands of DNA strands. They provide a high…

Sexual Motivation

Sexual motivation refers to a person's overall desire for sexual activity. It is an unusual motivation. Generally, among lower animals, the term 'drive' is commonly referred to as sexual motivation. It means a certain internal force drags the animal to be involved in reproductive behavior. On the contrary, humans are not simply driven by any internal force; rather, the sexual motivation in humans is due to several factors such as biological (hormones, genes), environmental (familial upbringing, chemical exposure) and physiological factors (culture, desire) which further determine engagement in sexual activities.