Q: What is genetypic and phenotypic ration?
A: SOME BASIC INFORMATION BUSED IN GENETICS :- HETEROZYGOUS - Every gene has two characters one being…
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: Using the following single letter gene designations. R - dominant allele for purple colored kernel r…
A: Genotype: It is a specific set of genes which is passed by an individual organism or cell.…
Q: What is the name for the situation where a single genetic locus influences multiple traits? Group of…
A: A locus, like a genetic street address, is the precise physical position of a gene or other DNA…
Q: What is a dimorphism? A trait with two distinct forms originating from the interaction of two…
A: In genetics and natural environment we see many organisms having different traits within a…
Q: What findings led geneticists to postulate the multiple- factor hypothesis that invoked the idea of…
A: In biology, the gene is the primary base of heredity. It is the summation of the sequence of the…
Q: When you interlace your fingers, your left thumb falls over your right thumb. So you have the…
A: In dominant-recessive conditions, the dominant phenotype masks the recessive phenotype, hence the…
Q: Wooly, curly hair is due to a rare dominant allele (H) and its recessive allele (h) produces…
A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…
Q: Which of the following represents an organism that is homozygous dominant for a trait? rr…
A: Mendel uncovered the fundamental laws of heredity. His experiments demonstrated that the inheritance…
Q: How can there be more than one possible genotype for an observed phenotype
A: A genotype is a set of heritable genes in an organism that are transferred from parents to…
Q: Why is this factor essential for the dominant allele to “take over” the gene pool?
A: Discoverers of this genetic equilibrium (Hardy) developed this HW equation to show that the dominant…
Q: What is the percentage of the total number of gene copies the allele accounts for?
A: Step 1 Allele frequency refers to how common an allele is in a population. Allele frequency can be…
Q: How do the terms gene and allele, as used here, relate to the concepts of locus and gene pair?
A: Reproduction is one of the most important and basic attributes for all individuals living on the…
Q: What is a gene with only one common, wild-type allele?
A: The coding region of the gene is known as allele. Wild-type alleles are the original form of the…
Q: In guinea pigs, an allele for rough fur (R) is dominant over an allele for smooth fur (r), and an…
A: A gene is carried by the gametes of the parents and it is expressed in the offspring. The…
Q: How can one use a pedigree chart to hypothesize how a certain condition is transmitted? Can a…
A: An individual's genotype determines his or her phenotype. The genotype is established by the alleles…
Q: What is the main difference between a homologous trait and an analogous trait?
A: Evolution is the process by which an organism inherits or adapts favourable characteristics that…
Q: In some genes, like blood type, two alleles are expressed at the same time. What do we call this?…
A: Gene usually function or express themselves singly or individually. But many cases were seen by…
Q: To what does the term allele refer? Group of answer choices a separate gene at another location on…
A: Gene is the functional unit of DNA. DNA is composed of genes with triplet codons. Genes are the unit…
Q: In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles…
A: Dominant allele The allele which mask or override the character of other gene which present in the…
Q: In bears fur colour can be either yellow or tan, and is determined by two alleles of the C gene. A…
A: A genetic trait is considered dominant if it is expressed in a person even in its single copy. While…
Q: What is a test-cross? Why might a geneticist need to do a test-cross and how are the results used to…
A: A test cross is done to find out the genotype of the individual and whether it is homozygous or…
Q: What is the difference between a locus and an allele? What is the difference between genotype and…
A: Genetic is the branch of science that deals with genetic material like genome, genes, DNA, and…
Q: What are genes with more than one common allele?
A: Genes are the basic structural and functional unit of heredity. They carry coded genetic information…
Q: In genetics, the dash symbol (–) is a “wild card” that stands for either the dominant allele or the…
A: The three laws of genetics were given by Gregor John Mendel. These laws are: Law of dominance Law…
Q: A woman heterzygous for color blindness (an X-linked recessive allele) marries a man with normal…
A: Color blindness is inherited as a recessive trait on the X chromosome. This is known as X-linked…
Q: Which of the following statements describes the multifactual inheritance in genetics? A. One locus…
A: Introduction The passing on of traits from parents to their offspring is known as heredity, also…
Q: What are multiple alleles? What is multiple allelism? Give examples to further understand the…
A: Please follow step 2 for detailed explanation.
Q: What are multiple alleles? Give an example?
A: An allele is the one of two or more varieties of the gene. The person will inherit two alleles for…
Q: What is the role of genes and chromosomes in the process of inheriting a specific trait?
A: Chromosome contains gene and Genes basically have the genetic information which get inherited from…
Q: What are Wild type allele and Mutant allele?
A: Alleles occur on the same locus in the homologous chromosomes of an individual and they are…
Q: Are multiple alleles, lethal alleles, and epistasis common or rare in humans? Why?
A: Multiple alleles refer to the different alleles of a single gene. It can be one or more than one.…
Q: What is genetic drift?
A: Introduction In this question we will discuss about the genetic drift.
Q: What is the difference between a gene and an allele? Identify the following terms as either a…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: What is a gene interaction in which the effects of an allele at one gene hide the effects of alleles…
A: Genes come in pairs and are responsible for the inheritance and expression of the associated…
Q: What data show that "Blending" between the phenotypes of two parents is not a correct view of…
A: The answer is: Some traits skip a generation and then return
Q: What is the probability that an individual who is heterozygous for a given allele will pass that…
A: Law of dominance: A dominant allele can show its characters in the phenotype both in homozygous as…
Q: Fur color is codominant in cows. A roan cow has a fur color of orange and white. What are the…
A: Non- Mendelian inheritance is an inheritance in which characters are not seperated out on the basis…
Q: What is the difference between duplicate recessive epistasis and recessive epistasis? Give an…
A: Epistasis is defined as the process of gene interaction in which one gene mask the phenotypic…
Q: Which allele is an example of a loss-of-function allele?
A: The mutation of a gene or allele can produce mutant allelic forms that either produce a reduced…
Q: Which of the following statements is true? The Creeper gene in chicken follows Mendelian…
A: Answer
Q: Roan color in cattle is the result of incomplete dominance between red and white color alleles (R/r)…
A: Incomplete dominance is when a dominant allele, does not completely mask the effects of a recessive…
Q: What is the unusual phenomenon in which the expression of an allele depends on the parent that…
A: A gene is a unit of genetic material and alleles are the alternative form of genes present on the…
Q: Are these alleles common or rare in humans?
A: Allele is a variant form of gene, humans can be diploid if they have 2 allele, with each allele…
Q: Why can a protein be used as evidence for common ancestry?
A: Complete life on earth emerged from a solitary common ancestor, & our genes mirror this common…
Q: According to Amar J. S. Klar, is there a such thing as “left handedness”? What is the preferred…
A: Introduction:- The basis of right- vs. left-hand-use preference in humans has been debated for a…
Q: How is maternal inheritance different from the segregation Mendel observed for nuclear genes
A: The maternal inheritance is different from the segregation that Mendel observed for nuclear genes.…
Q: How would you distinguish a trait caused by a sex-linked recessive allele from one caused by a…
A: Humans and other mammals have two sex chromosomes, the X and Y chromosomes. Females have two X…
What is the term for situations in which a single functional allele of a gene is unable to mask an allele that deletes the gene completely?
Step by step
Solved in 2 steps
- For a particular gene, homozygous dominant AA and heterozygous Aa individuals produce green pigment, while homozygous recessive aa individuals produce yellow pigment. During the course of your research you discover the a1 allele that contains a class IlI transposon insertion. Allele A is dominant to a1. Which genotype is capable of producing a mixture of green and yellow pigment?Genes A and B are 6 map units apart, and A and C are 4 map units apart. Which gene is in the middle if B and C are 10 map units apart? Which is in the middle if B and C are 2 map units apart?What is a gene with only one common, wild-type allele?
- Cystic fibrosis (CF) is an autosomal recessive trait. A three-generation pedigree is shown below for a family that carries the mutant allele for cystic fibrosis. Note that carriers are not colored in to allow you to figure out their genotypes. Normal allele = F CF mutant allele = f What is the genotype of individual #13? A) ff B) FF C) Ff D) it is impossible to tellA mutant allele in persons with familial hypercholesterolemia (FH) causes death due to a lack of liver receptors for LDL. Susceptible persons have half the normal number of receptors, while other individuals have the normal number of receptors. In a phenotypically normal couple, the man had a female 1 cousin (on his father’s side) who died from FH; the woman had a maternal uncle with FH. Using standard symbols, draw apedigree of these couple’s families. Write the genotypes of each family member.What is the phenomenon of a single gene determining a number of distinct and seemingly unrelated characteristics?
- Briefly discuss why mutant allele 1 fails to produce functional protein. (include three points in your answer)The term epistasis is used to refer to a situation in which the expression of a gene is influenced by another independently inherited gene. In labs, the gene B determines how much pigment is made. The dominant allele B results in black fur and the recessive allele b results in brown (chocolate) fur. A separate gene, E, codes for a protein that determines whether the pigment is deposited in the hair. (E = pigment deposited; e = pigment not deposited). What genotypes are possible for a black lab? What genotypes are possible for a chocolate lab? What genotypes are possible for a yellow Lab? In a cross between a black lab that is homozygous for both alleles and a yellow lab that is homozygous for both alleles, what would the genotype and phenotype of the offspring be? Imagine you cross two heterozygous parents. What are the genotypic and phenotypic ratios of the offspring?Below is a pedigree of a human genetic disease in which solid color indicates affected individuals. Assume that the disease is caused by a gene that can have the alleles A or a. a) Based on this pedigree, what is the most likely mode of inheritance? b) What is/are the possible genotype/s of person 1? c) What is/are the possible genotype (s) of person 4 ? Explain your answers.
- In mice, the A allele causes agouti fur, the AY allele causes yellow fur and is dominant to the A allele. The homozygous AY AY genotype is lethal. Why is the AYAY homozygous condition lethal? The AY allele highly transcribes the merc gene which is lethal in a homozygous AYAY individual. None of the other answers are correct. The AY allele lacks an upstream merc gene which is required for normal embryonic development. The AY allele contains a null mutation in the A gene, which is required for normal embryonic development. The yellow pigment produced by A allele is required for survival.A) Distinguish between the general concept of a gene and the specific concept of an allele at the level of the DNA. B) Strictly speaking, do identical twins have identical phenotypes? Explain.What is the relationship between linked genes and syntenic genes? Are syntenic genes always linked? Are linked genes always syntenic? Describe what is meant by each term