Barbara McClintock, the American geneticist, won a Nobel Prize in Physiology or Medicine for which of the following non-Mendelian discoveries? DNA-based transposons in bacteria the Alu sequence in humans

Q: What percentage of the human genome is nowpredicted to have functionality in at least one cell type?

A: The gene is the basic physical and functional unit of heredity. The genome is the genetic material…

Q: A series of people are found to have difficulty eliminating certain types of drugs from their…

A: The mutation is an alteration in a DNA sequence. These can result from DNA copying mistakes made…

Q: If you were working on the Human Genome project and trying to distinguish genes from transposons,…

A: The gene is the sequence of nucleotides and is the functional unit of heredity. Genes contain…

Q: Since we have known the sequence of the human genome for almost two decades, why sure of the total…

A: Because it is difficult to tell where one gene ends and another begins .  Another difficulty is same…

Q: Why are humans GMOs (genetically modified organisms)? our genome contains genes that do not code…

A: Genetically modified organisms are the organisms whose genetic material is modified with the help of…

Q: A gene has length of 10000 nucleotides, some of them are ancestral (A) and others are mutant letters…

A: Assume M(t) represents the quantity of modified nucleotides at generation t and number of ancestors'…

Q: Which statement best describes a genomic library? an initial amount of DNA can be multiplied into…

A: A genomic library is a set of an entire DNA of an organism cloned from the organism's entire body…

Q: Interested in exploring the genetic pathways that lead to neurological issues, you want to see if…

A: Genetic diseases or disorders can take place in case of present of a mutant gene. The mutation can…

Q: You have discovered an altered phenotype and cloned the gene responsible. However, the gene you…

A: Introduction :- Phenotype is the morphological characteristics or observable traits , that are the…

Q: Using the figure and the following background information answer the following questions about the…

A: Within the field of genetics and genomics, deciding the hereditary causes of certain characteristics…

Q: True/False   True or False? Transposon mutagenesis is useful for identifying essential genes in a…

A: A DNA sequence defines a transposon, which is a collection of mobile genetic elements. Transposons…

Q: Beadle and Tatum's experiments led to the "one gene - one enzyme (protein)" hypothesis. In…

A: The genes are the functional part of the DNA that are responsible for the production of RNA by the…

Q: When comparing evolutionary similarities between different genes within a gene family, it is usually…

A: A gene is a sequence of DNA that codes for a specific protein. Proteins are the building blocks of…

Q: The basic units of information that encode the proteins needed to grow and function as a living…

A: the basic unit of information that encodes the proteins needed to grow and function as a living…

Q: The evolution of the cultivated potato Solanum tuberosum (2n = 48 chromosomes) from the native…

A: Chromosomal duplication or gene duplication is a mechanism of amplification of the genetic material.…

Q: You are discussing with some of your bio major friends who have not taken Genetics and your non-bio…

A: The mutation is an alteration of the sequence of the genome. SNPs (Single nucleotide polymorphisms)…

Q: about the human genome? (Select ALL that are true) The human genome contains 23 pairs of…

A: Genome may be defined as the complete set of chromosomes in any individual.

Q: and you notice that a few of the new babies have a strange phenotype you’ve never seen before. They…

A: Any abrupt changes in the nucleotide sequence of DNA is called as mutation.  Mutations can be…

Q: Archibald Garrod was an English physician who first proposed that genes encode enzymes. Like the…

A: Archibald Garrod’s main contribution is considered as his scientific theory of metabolic inborn…

Q: Which of the following mobile genetic elements is a retrotransposon, making up about 10% of the…

A: A transposon can be defined as the characteristic mobile genetic element. These elements can…

Q: How does Epigenetic connect to unifying themes and principles of biology? (Give 2 examples)

A: Epigenetics is a new discipline of study that investigates heritable changes generated by gene…

Q: My professor instructed me to make a power point presentation on this topic" Prenatal Molecular…

A: Prenatal molecular testing is a collection of advanced genetic tests and techniques used during…

Q: You are working with a strain of mutant flies that have no wings. You apply gamma rays to your…

A: The genes are located on the chromosome. So genes are actually a particular DNA sequence. DNA is…

Q: Which of the following patterns was observed, in the experiments of Hershey and Chase, using the T2…

A: The experiment performed by Hershey and Chase proved that deoxyribonucleic acid (DNA) serves as the…

Q: Scientists look at thousands of mutagenized flies, one at a time, under a microscope. They are…

A:

Q: Julia and Vinay's teacher was walking around the laboratory during the experiment asking students…

A: Introduction:-  Bacteria are not sexually reproducing organisms. These are microbes which share pass…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.