How does X inactivation contribute to a person’s phenotype? a. It controls the number and kind of genes inherited on an X chromosome. b. It determines which X chromosome is expressed in a male. c. It allows for the expression of either the maternal or the paternal X in different cells. d. It enhances the expression of Y-linked genes in males.

Q: Determine whether or not two genes are linked and explain how you know

A: Genetic linkage is one of the important abilities of the genes present nearly close to each other on…

Q: If a woman is a carrier of a certain x linked disease and one of her X chromosomes is turned off in…

A: As according to the above question; women is a carrier of Certain X linked disease.for example ;…

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: When skin cells on a female fighter's arm divide to heal a wound she got during a fight in an arena,…

A: The process of determining which X-chromosome is inactivated in the daughter cells is a random…

Q: In mammals, males have X and Y sex chromosomes, while females have two Xs. While the Y sex…

A: In an XY-chromosomal system of sex determination in mammals, both X and Y-chromosomes are sex…

Q: What is the degree of intensity with which a particular genotype is expressed in a phenotype?

A: The expressivity is the degree of intensity with which a particular genotype is expressed in the…

Q: Explain how Bridges’s study of nondisjunction in Drosophila helped prove the chromosome theory of…

A: There are 23 pairs of chromosomes present in humans. Out of these 23 pairs 22 pairs are autosomal…

Q: Explain why the erasure phase of imprinting is necessaryin eggs.

A: Genomic imprinting is a type of epigenetics, where an alteration in gene or chromosome changes the…

Q: Why does X inactivation occur in female mammals?

A: A Chromosome is an entire chain of Deoxyribonucleic acid (DNA) with stabilizing proteins. The DNA is…

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: How is the process of X-chromosome inactivation similar togenomic imprinting? How is it different?

A: Introduction  During the sexual reproduction in fertilization process there is fusion of male gamete…

Q: What is a Calico Cat? and How does one of these cats look and What has happened to their X…

A: Calico cats are domestic cats.

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: 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: Why are multiple copies of the X chromosome tolerated?

A: In females, two X are present whereas in males only one X is present. To balance the expression of…

Q: Explain how X-linked inheritance differs from inheritance ofautosomal traits.

A: X-linked inheritance There are two possibilities if it inherit in dominant and the recessive.…

Q: In fruit flies, dosage compensation is achieved bya. X-chromosome inactivation.b. doubling the…

A: Dosage compensation refers to the mechanism of equalizing or balancing the expression of genes. It…

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: In humans, hemophilia is an X-linked recessive gene and will only be expressed in females if they…

A: Hemophilia is an inherited disorder where blood doesn't clot properly due to loss of body's capacity…

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: X inactivation explains the large color patches in calico cat fur and the smaller patches in…

A: The calico and tortoiseshell cats are named for their cat coloring.  The cat genes are usually…

Q: Predict the potential effect of the Lyon hypothesis on the retina of a human female heterozygous for…

A: LYON'S HYPOTHESIS -- The hypothesis , named after Mary Lyon  stated  it , suggesting  that doseage…

Q: Why a loss or an excess in genetic material leads to the expression of an abnormal phenotype

A: The translocation happens when a piece of one chromosome is servers and connects to another…

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: 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: Which observation led Thomas Morgan to realize that the gene for fruit fly eye color was located on…

A: The genes are present on chromosomes that segregate independently into different gametes. Each…

Q: For XCI to occur, where are the Xist and Tsix genes expressed?a. Xist is expressed only on Xa, and…

A: The inactivation of the X chromosome leads to the formation of a Barr body. It ensures the dosage…

Q: Explain the significance of “jumping genes.”

A: Genetics is the branch of biology that deals with genetic material like DNA, RNA. DNA stands for…

Q: The Chromosome Theory Integrates which Aspects of Gene Behavior?

A: Genotype is the genetic makeup of an organism. Chromosomes are the large molecules of genes or DNA.…

Q: When BRCA1 is absent, is it unable to transcribe genes like p21, which leads to senescence ?

A: Introduction Senescence is defined as the stage when the cell stops dividing permanently but does…

Q: Which of the following statements is FALSE? Inactivation of one of the two X chromosomes in the…

A: They were discovered in 1876. These are the tertiary structures of DNA formed as a result of complex…

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: Evaluate the statement: “Epigenetic information is highly dynamic in early development.”

A: Introduction  Similar DNA is present in all of the cells of an organism, but varied gene expression…

Q: does having different genes cause differences in epigenetic patterns between individuals?

A: While hereditary changes can modify which protein is made, epigenetic changes influence quality…

Q: Determines Sex in Drosophila?

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

Q: Cat breeders are aware that kittens expressing the X-linked calico coat pattern and tortoiseshell…

A: Gene is the unit of heredity that is transferable from the parent to the offsprings. The function of…

Q: A black female cat (XBXB) and an orange male cat (X0Y) weremated to each other and produced a male…

A: A calico cat is any breed of cat that has a tri-colored fur. It will mostly consist of a…

Q: Briefly describe the molecular processes that cause one X chromosome in each female cell to be…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: In humans, hemophilia is an X-linked recessive gene and will only be expressed in females if they…

A: In X linked recessive disease a male becomes diseased even if heterozygote. This is because males…

Q: 1. During the Human Genome Project, scientists learned that most of the human genome A. doesn't code…

A: According to our guideline we can answer only the first question. Upload the other questions…

Q: Molecular geneticists have performed experiments in which they altered the number of copies of the…

A: Drosophila melanogaster is a fly species that belong to order Diptera. Drosophila is also known as…

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: Can the Lyon hypothesis be tested in a human female who is homozygousfor one allele of the X-linked…

A: Lyon hypothesis: The concept that a gene dosage imbalance between males and females is compensated…

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…

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.