Explain how changes in chromosome structure may affect gene expression.

Q: Explain Overview of the structure of genes and chromosomes.

A: Genes are known to have complete information, which helps to produce mature proteins that helps in…

Q: Briefly explain how patterns of DNA methylation are transmitted across cell divisions.

A: DNA methylation is a biological mechanism that attaches methyl groups to DNA molecule. Methylation…

Q: Define DNA polymorphisms

A: DNA is composed of four nucleotides: adenine (A), cytosine (C), guanine (G), and thymine (T) (T).…

Q: Describe how chromosome number disorders arise ?

A: Chromosomal disorders for example Turner syndrome,  Down's syndrome, Edward's syndrome, klienfelter…

Q: Describe how reversible chemical changes to histones are linked to chromatin modification.

A: Histones are basic proteins associated with DNA in the nucleus and allow it to condense in chromatin…

Q: A chromosome with a centromere located at its terminal end is termed

A: Centromere is a central constriction of a chromosome.

Q: Define about the DNA methylation ?

A: DNA (deoxyribonucleic acid) is the hereditary or genetic material present in most of the living…

Q: Describe the structure of chromosome and how this structure is related with inheritance?

A: The term chromosome originates from the Greek words for color (chroma) and body (soma). Scientists…

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: Describe what is meant by epigenetic inheritance, and explain its significance.

A: Step 1 Epigenetic refers to the phenotypes and processes that are transmitted to other cells and…

Q: Explain how environmental factors can modify gene expression?

A: This is true that environmental factors can modify the gene expression, these environmental…

Q: Describe the key chromosome behaviors during mitosis.

A: Mitosis is a process of cell division where one diploid parent cell gives rise to two diploid…

Q: Describe how DNA methylation is heritable.

A: DNA (deoxyribonucleic acid) methylation involves the addition of methyl groups to cytosine bases…

Q: Explain what causes an individual to have an abnormalnumber of chromosomes.

A: The unusual number of chromosomes is caused because of Nondisjunction during cell division. It is…

Q: . Describe how chromosomes can vary in size, centromere location,and number.

A: Chromosomes are the thread like structure made up of tightly coiled deoxyribonucleic acid (DNA),…

Q: a. List three (3) features to identify the structure of a chromosome. b. Based on the three…

A: Introduction :- Chromosomes are the greatest level of DNA and protein organisation. Chromosomes'…

Q: List the genetic disorders resulting from chromosome deletions:

A: The genetic disorders are caused due to absence or excess or abnormal arrangement of one or more…

Q: Explain how chromatin structure influences gene expression

A: Chromatin is found within the nucleus of our cells. The essential work of chromatin is to compress…

Q: Explain the effect of a gene being “methylated”.

A: Gene is the sequence of nucleotides which encode a protein.

Q: Why is chromosome 15 absence affects?

A: Absence of a segment chromosome is type of chromosomal aberration known as deletion. Deletion…

Q: What happens when a gene is duplicated?

A: The genome of an organism is defined as the whole genetic information that is inherited from one…

Q: Illustrate how a change in chromosome organization may affect the activity of a gene.

A: Chromosomes are built up of nucleosomes, which are subunits of a DNA-protein structure termed…

Q: Explain how regulation of gene expression can altergene function

A: Genes are the structural and functional units of heredity. Genes carry deoxy ribo nucleic acid…

Q: With diagrams explain: (i) point mutations  (ii) chromosome rearrangement  (iii) epigenetic changes

A: The DNA (deoxyribonucleic acid) is the hereditary unit of an organism. It consists of purines and…

Q: describe X-chromosome reactivation.

A: The X chromosome is one of the sex chromosomes that is an essential chromosome for survival. The X…

Q: Describe the function of the centromere. How are centromeres different from other regions of the…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: Mutations in the ______________ chromosome can cause genetic disease.

A: Any alteration in the sequence of nucleotide of the genome is called mutation and these may result…

Q: Which letter is pointing at the centromere region? A C D

A: Introduction The given figures resemble that mitotic spindle microtubules from opposite poles attach…

Q: Which types of chromosome mutations Q.decrease the amount of genetic material in a particular…

A: Mutations are the alterations or the changes that occurs in the DNA. Mutagens are the agents that…

Q: Mutations must occur in which cells of the parent to be inherited by their offspring?

A: The cell is the essential underlying, utilitarian, and natural unit of every single known living…

Q: Is chromatin structure is altered in transcription?

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

Q: Why is it important for a chromosome to be copied before mitosis?

A: Mitosis is a process of cell division in somatic cells. In this cell division, cells divide into two…

Q: hat is the function of chromosome 20?

A: Chromosome 20 in humans has around 63 million base pairs that account for 2.5 % of the total DNA in…

Q: Discuss histones and how methylation and acetylation of DNA and histones can affect the production…

A: Histone modifications are related to the structural changes that mainly happen during the time of…

Q: Define copy number variation

A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…

Q: Discuss the relationship between genes and phenotype in terms of gene expression and the symptoms…

A: Units of inheritance are called genes. Genes are the DNA regions that encode proteins. Each gene…

Q: describe a specific example of chromosome abnormality that leads to human cancers, such as leukemia,…

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

Q: Explain how chromosomes are formed

A: The eukaryotic cell contains compactly arranged genetic material (DNA) inside a well-defined…

Q: Explain why Variation Occurs in the Composition and Arrangement of Chromosomes ?

A: Chromosomes are found in the cell's nucleus and contain the genetic material of the cell. A…

Q: genetic mutations help in mapping the location of genes on a chromosome

A: The first and foremost step for isolating and cloning the normal gene is by genetic mapping of a…

Q: Which types of chromosome mutations Q. increase the amount of genetic material in a particular…

A: Mutations are any changes in the genetic material of the cell. Chromosomes contain the genetic…

Q: Outline how histone methylation and acetylation affectchromatin structure

A: Gene expression may be done by the transcription of DNA into mRNA and formation of polypeptide…

Q: "A deletion of a portion of a chromosome need not be very great before the effects become severe".…

A: The genetic material of a cell is a nucleic acid. Most of the organism has DNA as the genetic…

Q: person with translocated chromosomes

A: Answer:Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion…

Q: Genes contain the instructions for assembling   chromosomes   proteins   nucleosomes   traits

A: Each DNA sequence contains instructions to make a protein and is known as a gene. The size of a gene…

Q: Differentiate an autosome and a sex chromosome.

A: Autosomes are the chromosomes that are involved in determining somatic characteristics of an…

Q: Describe how reversible chemical changes to DNA and histones are linked to chromatin modification.

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