How many Barr bodies would an 47,XXX individual have?

Q: How can epistasis explain incomplete penetrance?

A: Penetrance in genetic terms refers to the ratio of individuals that carry a specific allele of a…

Q: Sex determination of child is done by whose chromosome?

A: Chromosomes are the thread like structures which are located in the nucleus. There are 23 pairs of…

Q: Which of the following describes the genotype of individual 20?

A: A autosomal trait is that which is carried in the autosomes. An autosomal disease will only be…

Q: What is the genotype of individual 12? O AA or Aa O AA O Aa aa

A: Autosomal genes are present on the chromosome. The dominant gene will express itself in presence of…

Q: Which pair number represents the sex chromosomes?

A: The karyotype is the type of chromosomes or number of chromosomes present in the nucleus of a…

Q: Identify the variation of gametes from the genotype Xx Yy Ww?

A: Ans: Gametes are formed by the fusion of both the parents cells. Here in the question, 3 genes have…

Q: If you cross a female carrier of hemophilia with a normal, healthy male, what are the chances of…

A: Hemophilia is the genetic disorder inherited in X-linked recessive pattern. It is a bleeding…

Q: Some young couple were advice by a medical doctor that they cannot marry because of the differences…

A: There are four different types of blood groups present. These groups differ primarily on the…

Q: What environmental factors may increase incidence of chromosomal abnormalities? Name at least three.

A: Chromosomal abnormalities or aberration is defined as the defect in the structure or the number…

Q: What is incomplete dominance?

A: The genetics is the branch of biology that deals with the study of genes, genetic variation and…

Q: What is a Barr body? How is it related to the Lyon hypothesis?

A: Humans exhibit XX-XY type of sex determination.

Q: what are the genotypes of the offspring?

A: Genetics is a branch of biology that tells about genes, genetic variation, and heredity in living…

Q: Explain about the  Changes in Sex Chromosome Number ?

A: The genetic disorder may occur due to the addition or deletion of chromosomes that will result in…

Q: What is test cross?

A: The process in which the exchange of genes between gametes resulting in the formation of…

Q: What is importance of barr body

A: Chromosomes are defined as the thread-like structures that carry genetic information. There are 23…

Q: How many Barr bodies would the following individuals have? Reason? a) normal male b) normal female…

A: If the cell has more than one X chromosomes present in the nucleus only one X chromosome will be…

Q: What does abnormal male karyotype mean?

A: A karyotype is the visual picture of number and morphology of chromosomes. It consists of analyses…

Q: RR x Rr What percentage of the offspring will be round?

A:

Q: What is a chromosomal island and how can one be identified asbeing of foreign origin?

A: The term chromosomal island is generally used in microbiology with regard to the bacteria. The…

Q: Difference between monohybrid and dihybrid cross?

A: G. J. Mendel, also known as the Father of Genetics discovered the existence of genes during his…

Q: Why can a person carrying a translocation be normal except for theinability to have children?

A: Translocation is a hereditary change were a piece of one chromosome servers and connects to another…

Q: What is a test cross, and how do you determine it?

A: Test cross:In genetics, test cross is used to define the genetic makeup of a dominant gene by…

Q: What is an individual with a homozygous genotype?

A: Genotype refers to the genetic composition of an organism. It is of three types, namely homozygous…

Q: What is a Barr body, and where is it found in a cell?

A: A chromosome is a long DNA molecule with part or the whole hereditary material of a creature. Most…

Q: What is polyembryony?

A: An embryo is defined as the early developmental stage of eukaryotic organisms following the…

Q: Given that the individual has a dominant phenotype, is it possible to determine its genotype?

A: The allele combinations of a gene present in an organism determine the genotype and phenotype. The…

Q: What are some facts about XXY syndrome? at least 5

A: Chromosome abnormalities are the disorder in which an individual possess more or reduced number of…

Q: In which of the following cases will a Barr body be seen?     only XX     XY     XO…

A: Barr body was a strongly stained inactivated condensed X chromosome found in each somatic cell of…

Q: If the proband (III-2) marries a carrier woman, what is the probability that they will have an…

A: The inheritance pattern observed from the given pedigree is an X-linked dominant trait.

Q: What is an individual with a heterozygous genotype?

A: The genotype is a collection of genes and controls the genetic features of an organism.

Q: Why do females have Barr bodies?

A: The sex chromosomes present in the males differ from the sex chromosomes present in the females. The…

Q: Is it possible for an unaffected female to havefemale offspring with red–green color blindness?

A: When the mutation is on the gene of the X chromosome, it is called the X-linked inheritance. As…

Q: What is Trisomy test?

A: The chromosomes are the thread like structure that contains hereditary information in the form of…

Q: what will be the the phenotypical ratio?

A: Phenotypic ratio is the probability of observable characters in the off springs after cross…

Q: Define monohybrid crosses?

A: An allele is a variant of a gene. The allele can be dominant or recessive. The dominant allele is…

Q: How long can a person live with Trisomy 16?

A: Trisomy 16 is a genetic alteration in which there is an extra copy of a chromosome 16 in a person.…

Q: How many females are wild type?

A: Wild type is a type of gene, genotype or phenotype that is present in the natural strains. On the…

Q: by what age a person with trisomy 17 can survive?

A: Disease:   When an organism’s body system does not work properly or any organ affects by viruses,…

Q: Could a man with an O blood type be the father of an AB child? and why?

A: The man with blood type O cannot have a child with AB blood type.In blood types, the allele Io is…

Q: What is 47,XXX Syndrome ?

A: A syndrome is characterized by a collection of medical indications and symptoms that are related to…

Q: (a) What is a Barr body? (b) How many Barr bodies are present in a person 2n = 47, XXX (c) Is it…

A: We are answering the first 3 questions only.  For the rest of the questions please repost. The…

Q: What determines the phenotype of the offspring ?

A: An organism's genotype refers to its entire genetic makeup. The alleles or variants that an…

Q: What is the formula for a female with a Philadelphia chromosome?

A: Hi, Thanks For Your Question.  Answer : The Philadelphia chromosome Is A Specific Genetic…

Q: How many Barr bodies would the following individuals have? a) normal male b) normal female c)…

A: Barr body is referred to as inactivated X chromosome in the somatic cell. The number of Barr bodies…

Q: So why the barr bodies cannot be seen in the experiment?

A: Each organism's DNA sequence is unique. Its base-pair sequence might vary from time to time. It is…

Q: by what age a person with trisomy 13 can survive?

A: Trisomy 13 or Patau syndrome occurs when 3 copies of the chromosome-13 are present in each cell of…

Q: What is the purpose of Barr bodies?

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: by what age a person with trisomy 18 can survive?

A: Trisomy is a rare genetic condition with three extra copies of chromosomes instead of two copies…

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.