A) Distinguish between the general concept of a gene and the specific concept of an allele at the level of the DNA.

Q: Epigenetics addresses a) the mechanism by which the environment alters a person’s genotype. b) the…

A: Answer : Option (C) is correct. ~ the mechanisms that can alter gene expression.

Q: 15) Once researchers identified DNA as the molecule responsible for transmitting heritable traits,…

A: Information transfer is fundamental to all living organisms. For TWO of the following examples,…

Q: 5) Humans who have an abnormally high level of cholesterol are said to suffer from familial…

A: Introduction :- Familial hypercholesterolemia is an inherited disorder characterized by elevated…

Q: What is meant by a sexlinked gene?

A: Chromosomes are filamentous bodies present in the nucleus. They are composed of DNA…

Q: Describe the most common molecular mechanism for recessively inherited human genetic diseases such…

A: Cystic fibrosis is an inherited life threatening disorder which damages lungs and digestive system.…

Q: The distance between k and e would be approximately...  a) 6.25 cM b) 6.6 cM c) 4.65 cM d) 5.0…

A: Linkage is a phenomenon in which genes are placed on the same chromosome in close proximity to each…

Q: Albinism is characterized by the lack of a dark pigment called melanin in the hair, skin and eyes.…

A: Albinism is a genetic condition that affects the production of melanin. Melanin is the pigment that…

Q: Is a gene a triplet ofconsecutive DNA nucleotides?

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

Q: In a study of a muscle disorder, several affected families exhibited vision problems, muscle…

A: Genes in nuclear content express most of the characters, while some of the characters are associated…

Q: Identical (monozygotic) twins have identical genomes. In one pair of identical twins, they inherit a…

A: Types of twins. 1. Monozygotic (identical) Twins: These twins are formed when a single fertilized…

Q: What is a gene family? How are gene families produced over time?With regard to gene function, what…

A: Gene is known to be a hereditary unit. They are composed of DNA or deoxyribonucleic acid and some of…

Q: In addition to the predominant adult hemoglobin,HbA, which contains two α-globin chains and…

A: Crossing over occurs during prophase I of meiosis. The pairing of chromosome occurs at tandem…

Q: In a study of a muscle disorder, several affected families exhibited vision problems, muscle…

A: Genes in nuclear content express most of the characters, while some of the characters are associated…

Q: Which type(s) of chromosomal aberrations will suppress recombination in heterozygotes?  A.)…

A: Chromosomal aberrations It is a condition that affects autosomes, sex chromosomes, or both, and is…

Q: Recessive genes are usually expressed in humans only when ___ a ) they are coding for genetic…

A: There are two alleles of a single trait or a character, one which we are seeing in each generation…

Q: Which of the following statements about linkage disequilibrium is false?    a.) A new mutation first…

A: Linkage disequilibrium (LD) is defined as the non-random association of alleles at different loci.…

Q: What is the relationship between linked genes and syntenic genes? Are syntenic genes always linked?…

A: Introduction Linkage is the phenomenon in which genes are situated on the same chromosome (linked…

Q: What is the underlying genetic defect that causes xeroderma pigmentosum?How can the symptoms of this…

A: Xeroderma pigmentosum condition is a result of specific mutations in the DNA and it is the autosomal…

Q: Two related forms of muscular dystrophy—Duchenne muscular dystrophy (DMD) and Becker muscular…

A: Muscular dystrophies cause muscle weakness and atrophy in the skeletal muscles exclusively in males.…

Q: A mutation creates a dominant negative allele of a particular gene. The gene encodes a protein that…

A: * A monomer is an single subunit and a trimer consists of three monomers bound together with bonds.…

Q: 37) The recessive alleles k (kidney-shaped eyes instead of wild-type round, c (cardinal-colored eyes…

A: This is the three points cross, cross between three genes i.e., k, c and eHere given,k c e  3 = Dcok…

Q: Nucleotide Position                   1       5        10        15 Sequence 1. . . . T C T G G A…

A: Haplotypes are referred to the group of alleles that are inherited from a single parent. The…

Q: What is Epistasis? A) When one gene effect another B) When one gene effect multiple phenotype C)…

A: Introduction  Genes are the key component of genetic material which control almost all the cellular…

Q: List five reasons why genetic maps are useful?

A: Genetics is a branch of biology that deals with genes, heredity, and variation. Heredity purely…

Q: Lab 5: Reproductive Cell Division - Meiosis 11) The accompanying pedigree concerns a rare inherited…

A: A pedigree or family tree is a chart made up of symbols and lines which represents family history of…

Q: The phenotype of a heterozygous mouse (Aa) is agouti.  The agouti banding pattern is due to altered…

A: * Homozygous dominant and Heterozygous will produce agouti that is AA or Aa respectively  and the…

Q: a) What is the chromosomal abnormality associated with Fragile-X Syndrome?   b) What is the…

A: Fragile X syndrome is a genetic condition which causes many problems in development.

Q: (6) Which of the following descriptions regarding human genetic variations is correct? A) Unlike…

A: SNPs may effect promoter activity or gene expression, messenger RNA ,conformation stability, and…

Q: What DNA sequence feature is required for a G-quadruplex to form?

A: G-quadruplex formed are formed in telomeric sequences which are highly polymorphic. A four repeat…

Q: What does it mean for a mutation to be allelic?

A: Mutation is the alteration in the nucleotide sequence of the genome of an organism. It takes place…

Q: man and a woman have a child with cystic fibrosis. Neither parent has cystic fibrosis. How could…

A: Cystic fibrosis is an inherited life-threatening disorder that affects the lungs and digestive…

Q: physical appearances of individuals affected by the abnormality structure of deletion, inversion,…

A: The phenotypes of individuals are effected by numerous factors. As much as it depends on factors…

Q: 13) Use the image below of the X and Y sex chromosomes of a human to answer the following question.…

A: INTRODUCTION : Chromosomes - In the nucleus of every cell, the DNA molecule is packaged into…

Q: (5) Which of the following statements regarding haplotype is correct? A) Haplotype usually refers to…

A: Genetic material of many organisms generally inherited from two parents. The DNA from the parents…

Q: Explain exactly what the X25 probe is and how it allows for visualization of mRNA from the patients.…

A: Frataxin is a mitochondrial protein responsible for iron binding. When the expression of this…

Q: How might a point mutation in DNA affect the phenotype. How the genome is expressed in the organism?…

A: The genome of an organism contains all the genetic information required for the development, growth,…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.