How do geneticist normally tell whether an organism exhibiting a dominant phenotype is homozygous or heterozygous for such a trait? Illustrate with an example.

Q: How do geneticist normally tell whether an organism exhibiting a dominant phenotype is homozygous or…

A: *To know whether an organisms dominant trait is homozygous or heterozygous for a specific allele one…

Q: What is the mathematical expression of the genetic equilibrium for genes with two alleles? Is this…

A: The Hardy-Weinberg equilibrium is a standard expressing that the hereditary variety in a populace…

Q: A heterozygous plant of AaBb genotype was testcrossed and gave the following results.   Phenotypes…

A: A trait is a characteristic feature that is unique to particular individual . A dihybrid cross is a…

Q: If a geneticist were to closely examine the make-up of a single aut chromosome from one of your…

A: This question explores the concept of genetic inheritance and the composition of autosomal…

Q: Which of the following can help explain how continuous variation in a trait can arise from…

A: The biological theory that was proposed by Sir. Gregor Mendel, defining the laws of inheritance and…

Q: How do geneticists know whether a particular trait is caused by the alleles of one gene or by two…

A: A gene is a stretch of nucleotides present in the DNA. DNA or deoxyribonucleic acid is a polymer of…

Q: What is the penetrance of this trait? i.e., What is the ratio between the number of individuals in…

A: The term "penetrance" refers to the rate at which a given gene is present in a population and…

Q: In an 1889 book titled Natural Inheritance (Macmillan, New York), Francis Galton, who investigated…

A: Francis Galton, who studied measurable feature inheritance, proposed the law of "ancestral…

Q: In his famous paper, Mendel writes that he set out to“determine the number of different forms in…

A: Mendel performed his experiments on garden peas to study the inheritance of characters in plants. He…

Q: elect all examples of mutations that are likely to e dominant to wild-type alleles. elect all…

A: Dominant mutations are those mutations which are either present in the homozygous or heterozygous…

Q: Describe three different pedigree symbols and their uses. What are pedigrees used for in genetics?

A: A pedigree is a chart or diagram that shows the genetic relationships among individuals in a family…

Q: Let’s suppose a gene exists as a functional wild-type allele and anonfunctional mutant allele. At…

A: Dominance is a phenomenon in which an individual has two allelic forms that expresses one over the…

Q: 1)What is a test-cross? 2)Why might a geneticist need to do a test-cross and how are the results…

A:

Q: If a single expressed gene can affect multiple traits at once, what would be the most precise manner…

A: The examination of genes and inheritance, or how particular characteristics or traits are…

Q: What does codominance mean in genetics? Select one: O a. Both alleles are expressed only when they…

A: Codominance in genetics refers to a situation where the two alleles are expressed in the phenotype…

Q: While studying the genetics of the "Cute Faced Bat" face structure gene, three alleles (CO, CN, CF)…

A: An allele is a gene's alternative version that exists on the same locus. Each gene only has two…

Q: One example of non-Mendelian inheritance is uniparental inheritance. Choose the definition of…

A: Non-Mendelian genetics refers to inheritance patterns that do not follow the simple Mendelian…

Q: Mendel's second postulate states: When two different unit factors responsible for a characteristic…

A: The three basic Mendel’s laws known as laws of inheritance are: Law of Dominance Law of Segregation…

Q: Explain why most loss-of-function alleles are recessive to wild-type, but some are incompletely…

A: An allele determines the hereditary characteristics. Most of the genes have two alleles, namely the…

Q: What is the phenomenon of a single gene determining a number of distinct and seemingly unrelated…

A: Introduction: Gene is a segment of DNA that determines the phenotypic characteristics of the…

Q: cl II III IV 1 2 2 3 4 2 E) I II III IV S 3 D) I II HI IV 1 85 8 2

A: Introduction :  Pedigree charts are family trees that show the members of a family who have been…

Q: The role of the TPMT genotype in response to treatment emphasizes the importance of…

A: TPMT gene synthesizes an enzyme known as thiopurine methyltransferase. This gene has majorly five…

Q: In pedigrees, individuals are usually specified by using a Roman numeral for their generation in the…

A: Cystic fibrosis (CF) is an inherited disorder that causes severe damage to the lungs, digestive…

Q: What is the genetic distance between red petals and waxy texture?

A: Gene distance  Gene distance means the number of bases present between two gene. On the basis of…

Q: What is the mathematical expression for the genetic equilibrium for genes with two alleles? Is this…

A: The situation of an allele or genotypes in a genetic pool (such as a community) in which the…

Q: A study of three generations in a family of a male colleague of the authors indicated that many of…

A: Cardiovascular diseases are a group of disorders of the heart and the blood vessels. They include:…

Q: You self-fertilize an F1 plant to produce the F2 generation.  Based on Mendelian principles of…

A: GREGOR MENDEL was a mathematician, biologist and meteorologist who conducted several experiment on…

Q: How many different allele combinations can be produced from two parents that are heterozygous for a…

A: A polygenic trait those phenotype which is influenced by more than one gene. polygenic trait show…

Q: Describe the concept of the extended phenotype.  Can you think of a trait that you consider to be…

A: The extended phenotype refers to the idea that an organism's genes can influence not only its own…

Q: In the species Polyfarius obscescens, one gene controls lipid storage. Individuals with the dominant…

A: Storage lipids, also known as triacylglycerols, membrane lipids, which include glycerophospholipids…

Q: To locate genes associated with quantitative traits, geneticists often use QTL mapping (see the…

A: Quantitative trait locus refers to a section of DNA (deoxyribonucleic acid) that corresponds to…

Q: With regard to pedigree analysis, make a list of observations thatdistinguish recessive, dominant,…

A: Pedigree analysis is a diagrammatic representation used to determine the mode of inheritance of…

Q: Often geneticists want to change one allele in an outcrossing organism while keeping the rest of the…

A: To purge 99.9999% of the inferior genes from the white-eyed fly, the cross will start with the…

Q: For the pedigrees below, name the inheritance pattern of the depicted disorder: If more than one…

A: Introduction :  A pedigree chart is a diagrammatic flow chart designed to display a person's genetic…

Q: Cystic fibrosis (CF) is an autosomal recessive trait. A three-generation pedigree is shown below for…

A: Given: Cystic fibrosis (CF) is an autosomal recessive trait. Normal allele =  F      CF mutant…

Genomic studies

Genomic studies (genomics) is the study of the whole genome of an organism. Using bioinformatics and high-performance computing, genomic researchers examined massive amounts of deoxyribonucleic acid (DNA)-sequence data to discover variations or mutations that affect drug response, health, or disease. Genomics is a much younger discipline than genetics, having only emerged in the last few decades as a result of technological advancements in DNA sequencing and computational biology.