The introduction to this chapter discussed a study of telomere length in Romanian children. The study demonstrated that children raised in orphanages had shorter telomeres than children raised in foster homes. What effect, if any, do you think having shorter telomeres in childhood might have on adult life?

Q: ASsume that a fish inherits a mutation in both the eye switch and the coding region of the Pitx1…

A: Hi dear, here's your answer .please like it. Pitx1 quality is communicated in all tissues as Pitx1…

Q: We often speak of diseases such as phenylketonuria (PKU) andachondroplasia as having a genetic…

A: When the disorder is caused by the mutation in a gene or multiple gene or by combination of the gene…

Q: Phenylketonuria (PKU) is an autosomal recessive disease that results from a defect in an enzyme that…

A: Phenylketonuria is an inborn error of metabolism which happened due to decreased or low metabolism…

Q: A- Describe the anatomy and physiology of a dog's dewclaw.

A: A dewclaw is a vestigial finger found on the feet of many species. It frequently develops higher on…

Q: A group of bird embryos was studied to see if the hair cells in cochlea were able to regenerate…

A: An experiment is performed to examine the link between different factors in order to find a…

Q: Phenylketonuria (PKU) is an autosomal recessive disease that results from a defect in an enzyme that…

A: With the chemical formula C 9H11NO2, phenylalanine (Phe or F) is an essential -amino acid. It can be…

Q: Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the…

A: X linked disease  Those diseases which are linked to X chromosome of an individual and pass through…

Q: Junctional epidermolysis bullosa (JEB) is a severe skin disorder that results in blisters over the…

A: Junctional epidermolysis bullosa is type of skin disorder in which blisters develop on the skin of…

Q: Of the following statements related to the function of telomeres, identify which is FALSE.   a.…

A: Telomerase is an RNA-dependent DNA polymerase that helps extend telomeres. the telomeres are the…

Q: Phenylketonuria (PKU) is an autosomal recessive disease that results from a defect in an enzyme that…

A: PKU or Phenylketonuria is a genetic disorder related to failed metabolism of an amino acid. The…

Q: In your attempts to identify a genetic basis for rheumatoid arthritis in humans, you have DNA…

A: Rheumatoid arthritis is a chronic autoimmune disease that causes inflammation and pain in the…

Q: These questions have more to do with animal biology. What is tail docking in general? and then what…

A: Tail docking:Tail docking refers to the amputation or removal of a portion of animal’s tail,…

Q: The skin pigment melanin is expressed differently according to exposure to sunlight, with a greater…

A: Phenotype is the expression of the gene and alleles present in an organism's genome. In most cases,…

Q: Tay–Sachs disease is a severe autosomal recessive genetic disease that produces deafness, blindness,…

A: Tay-Sachs disease is a neurodegenerative disease that is caused by the mutation of the gene HEXA…

Q: What other genes besides ARHGAP11B distinguish us from our closest relatives, the chimpanzees and…

A: The DNA (deoxyribonucleic acid) is the hereditary unit of an organism. The genes consist of the DNA…

Q: Name three possible factors contributing to early asymmetries in a developing embryo (i.e. what are…

A: FACTORS CONTRIBUTING TO EARLY ASYMMETRIES IN A DEVELOPING EMBRYO: Embryonic morphogenesis occurs…

Q: Salim and Sara are contemplating having children, but Salim’s brother has galactosemia and Sara’s…

A: Introduction  Galactosemia is the autosomal recessive disorder. The affected individual is unable to…

Q: A male dog is a carrier for the autosomal recessive disorders centronuclear myopathy (Y/y) and von…

A: Centronuclear myopathy and von Willebrand disease is an autosomal dominant disease and is a single…

Q: what is the Chimp-Gene Fusion hypothesis? (Describe in detail the theory and weakness)

A: Chimp-Gene Fusion hypothesis explains that humans have one fewer chromosome pair in their cells than…

Q: What critical developmental process/es are altered following retinoic acid-exposure, which may cause…

A:

Q: la)Elene worked on a construction site for part of the time that she was pregnant with her daughter,…

A: Lead in the blood of a prenatal mom can cause the baby in the womb to born too early and it also…

Q: Brachyolmias are said to be heterogeneous and inherited in both dominant and recessive manners. What…

A: Brachyolmia is a rare type of bone disorder, which is genetically and clinically heterogenous in…

Q: Mutations in gap x genes remove proximal segments during segmentation.

A: Mutations in segment polarity genes remove proximal segments during segmentation. The proximal…

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: Yesterday, when Daniel was showering after a basketball game in the gym, one of his friends asked,…

A: Many of the people on the earth are nowadays affected by the dreadful disease cancer. The cancer is…

Q: Junctional epidermolysis bullosa (JEB) is a severe skin disorder that results in blisters over the…

A: Junctional epidermolysis bullosa (JEB) is type of skin disorder in which blisters develop on the…

Q: These data suggest that Telomere length (T/S ratio) Life span (years) 1.0- 0.9 0.8 0.7- 0.6 0.5 9876…

A: Telomeres At the ends of linear chromosomes, a region of repeating nucleotide sequences known as a…

Q: here is a benign congenital condition called Hereditary Persistence of Fetal Hemoglobin (HPFH) in…

A: Hereditary Persistence of Fetal Hemoglobin is the condition when there is still fetal hemoglobin…

Q: e homeotic mutation Antennapedia causes mutant Drosophila to have legs in place of antennae and is a…

A: Dominant gain-of-function mutations affect just one copy of an allele and result in the production…

Q: Removing the patch of tissue called the ZPA from one limb bud and placing into onto another…

A: ZPA is a zone of polarising activity, gives molecular signaling during limb formation in…

Q: What phenotypes do you think a homozygous tra1hsn animal with a gain of function mutation in the…

A: Mutation changes genotype frequencies by continually implementing new alleles, that can be…

Q: A man in his early 30s suddenly developed weakness in hishands and neck, followed weeks later by…

A: Myotonic dystrophy (DM) is the second most frequent type of muscular dystrophy. In the most severe…

Q: Why did scientists select fruit flies for his genetics experiments?

A: Drosophila melanogaster is a small common fly species that belongs to the Drosophilae family. It is…

Q: The BMP-Nodal gradient so vital to amphibian and fish development may be critically important in…

A: Pluripotent stem cells: Pluripotent stem cells are defined as the ability of the cells to self renew…

Q: geneticist finds a mutation that results in neurodegeneration phenotype in C. elegans, typical of…

A: C.elegans is a nematode that shares lot of genes with humans as a result we share several…

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.