Which of the following is/are true of alleles? Alleles can be identical or different for any given gene in a somatic cell Alleles of the same gene are found on nonhomologous chromosomes Alleles can represent alternative forms of a gene Alleles can be dominant or recessive
Q: One gene that produces multiple effects such as in Marfan syndrome, is called a(n) ___. epistatic…
A: Allele is an alternate form of a gene which may be dominant or recessive for any particular trait.…
Q: A gene is termed when one copy is needed for the trait to be expressed genomic dominant recessive…
A: Answer is dominant gene
Q: The gene for white eye colour is present on the X- chromosome in Drosophila, and is a recessive…
A: The gene for white eye color is present on X-chromosome in Drosophila which suggests that the gene…
Q: Which of the following genetic disorders is described by the following: Recessive sex-linked…
A: Only the X chromosome contains the 'gene' that induces (inherited, red and green forms of) colour…
Q: parents are carriers of a trait. To illustrate the transmissið. color the figures as described. •…
A: Autosomal recessive inheritance -- To understood the autosomal recessive inheritance first to…
Q: Hemophilia is inherited exactly like colorblindness. The dominant allele calls for normal clotting…
A: It is given that the inheritance of hemophilia is similar to color blindness. Also, it states that…
Q: What kind of sight is expected in the children from this marriage?
A: Daltonism is also known as deuteranopia which is a rare form of color blindness. In this form, the…
Q: A sex-influenced trait in humans affects the length of the index finger. A short allele is dominant…
A: Index finger shorter than the ring finger is a sex influenced male dominant trait. This trait is…
Q: recessive gene is a gene that produces effects only if a dominant gene is not present. A True False
A: Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of…
Q: The gene for color vision is found on the X chromosome. Both the husband and wife have normal…
A: If wife and husband both have a normal colour vision then their genotype will be- Wife- XCX Husband-…
Q: A sex-influenced trait in humans is one that affects the length of the index finger. A “short”…
A: By pedigree analysis we can determine the genotype, identify the phenotype, and predict the trait of…
Q: You have multiple genes that determine your hair color. What inheritance pattern is this an example…
A: The biochemical substance that is carried from the preceding generation to the succeeding generation…
Q: ___________________ alleles are always expressed in the presence of another allele. recessive…
A: Alleles are two alternative forms of a gene. Alleles can be dominant or recessive. Dominant -…
Q: Which statement below defines epistasis? proportion of individuals with an abnormal genotype that…
A: Inheritance of traits in organisms occurs by passing discrete heritable units(genes) from parents…
Q: Which of the following would conform to Mendel’s law of independent assortment?a. all the alleles of…
A: BASIC INFORMATION USED IN GENETICS HETEROZYGOUS - Every gene has two characters one being the…
Q: In humans, at least one gene produces melanin skin pigment in response to UV radiation (that is,…
A: Pleiotropy refers to the expression of various traits produced by a single gene. The gene that…
Q: Alleles that are are expressed and mask expression of other alleles are known as with a capital…
A: In organisms that sexually reproduce, each individual organism receives two sets of chromosomes, one…
Q: A man and his wife are both carriers for a recessive disease allele. If the couple has a child,…
A: A recessive disorder can be autosomal or X-linked. In female, phenotypic trait by recessive allele…
Q: When many alleles exist for the same gene, the ________ types are variants.
A: When many alleles exist in a DNA pool, there are chances that more variants arise because of more…
Q: Which of the following defines polygenic inheritance? An inheritance pattern in which one allele…
A: An inheritance pattern in which one allele is not fully dominant over another, so the heterozygous…
Q: One important example of multiple alleles is the human ABO blood type. Explain what “multiple…
A: The alleles at the alternative forms of a gene that are located on the same locus of a homologous…
Q: A homozygous person is _______ Cell division that results in two identical daughter cells A…
A: A individual can be either heterozygous or homozygous. An individual with two different allele for a…
Q: Which of the following defines a genotype? The particular set of alleles that is carried in an…
A: answer- Genotype is a particular set of alleles that is carried in an individual’s chromosomes.
Q: Even if a particular gene has 10 alleles, an individual can only carry in his or her chromosomes…
A: A chromosome is an organized package of DNA found in the nucleus of the cell.
Q: Dimples are dominant over no dimples. A mother that does not have dimples marries a man. Together…
A: Given that: Dimples are dominant over no dimples. Let us assume that D codes for dimples and d codes…
Q: Which of the following statements about genes is TRUE? Alleles of genes located on the same…
A: Mendel's law of independent assortment states that the alleles of two or more different genes get…
Q: Which of the following criteria that does not apply to extrachromosomal inheritance Non-segregation…
A: Answer:- according to the question Non mappability and mendelian segregations does not apply extra…
Q: What type of inheritance is being described here: One allele for a gene is not completely dominant…
A: Genes are the part of DNA and act as the carriers of genetic information which help in determining…
Q: In the case of Recessive Lethal Alleles, what copy number of an allele is lethal? O1 2 None of the…
A: A recessive lethal allele consists of two identical alleles present in an organism that both result…
Q: Albinism is inherited through a recessive allele (a). Juan has normal skin color. His Mom and Dad…
A: Genotype means the alleles constituting the genetic composition and responsible for the expressing…
Q: If a gene shows classic dominance (one allele is dominant, one is allele is recessive), what is the…
A: Dominant trait in genetics is the one that has the capability of masking the effect of the recessive…
Q: A pattern of inheritance in which the form of a single trait is collectively determined by alleles…
A: Gene- A gene is a polynucleotide chain that will control a particular trait.
Q: Red-green color blindness is an X-linked recessive trait in humnans. Consider an affected woman and…
A: Red green color blindness is a recessive X- linked recessive trait in humans. It is given that an…
Q: Given this pedigree, and considering only the alleles for blood antigens.. which of the following…
A: The ABO blood group system is an example of multiple alleles. There are four types of blood groups;…
Q: Allele-specific gene inactivation by males and females during formation of gametes is called?…
A: Option A is correct because Genomic imprinting is a process of silencing genes through DNA…
Q: The human female has two X chromosomes. In which of the following ways will x-linked traits be…
A: X and Y chromosomes are sex chromosomes. The female has two X chromosomes and the male has XY…
Q: Which statement describe a dominant trait? S2 and S3 are correct S2 - gene that is not expressed in…
A: Introduction Genes are the functional unit heredity. Gene controls all the characters of a living…
Q: Which of the following statements best describes an individual whose genetic make-up is shown below?…
A: Chromosomes are thread like structure present in the nucleus of cell. These are the hereditary…
Q: Which of the following models represents the genetic material that governs inherited traits? A C…
A: Genetic material that governs inherited traits.
Q: Which of the following statements describes the multifactorial inheritance in genetics? O Phenotype…
A:
Q: Which statement is TRUE about the law of segregation? One allele goes into each gamete. Alleles…
A: Mendelian law of inheritance is a mode of inheritance in which the genes play an important role is…
Q: General properties of Sex-linked Inheritance, traits is always passed from the father to son and…
A: Sex-linked inheritances are also called X-linked inheritances. In this inheritance, the gene is…
Q: A gene locus is ____. a dominant gene the location of a gene on a chromosome a sex chromosome an…
A: Gene can be defined as the sequence of nucleotides in DNA or RNA which encodes for the synthesis of…
Q: Multiple alleles is described when a trait is controlled by more than two alleles, and that even if…
A: According to the question, here we will discuss that multiple alleles and lethal alleles are common…
Q: The A and B alleles are codominant, and the O allele is recessive. An AB blood type mother has…
A: Codominance means neither allele can mask the expression of another allele. Example of codominance…
Q: Which cellular process underlies Mendel´s law of independent assortment? Chromosomes align…
A: * Mendel's law of independent assortment states that two or more than two different gene alleles…
Q: Which of the following is the most likely description of the trait in the following family tree?
A: Any chromosome other than sex chromosomes are known as autosomes.
Q: For the expression of a recessive trait, a person needs to inherit a Multiple Choice recessive…
A: Introduction: Dominant allele is able to express itself even in the presence of its recessive…
Q: Color blindness is a condition in which a person cannot distinguish specific colors from one…
A: Given that color blindness is an X linked disorder . Hence we can take X for normal vision and Xc…
There's more than one correct answers
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Which of the following describes the difference between genetic maternal effect and cytoplasmic inheritance? O Progeny from a Genetic Maternal Effect cross express the phenotype of their mother's genotype, while progeny from a cytoplasmic inheritance cross share a genotype and phenotype of their mother. Progeny from a Genetic Maternal Effect cross have a phenotype that reflects their own genotype, while progeny from a cytoplasmic inheritance cross share a genotype and phenotype with their mother. Progeny from a Genetic Maternal Effect cross have the same genotype as their mother, while progeny from a Cytoplasmic Inheritance cross do not. There is no difference.Which of the Pedigree Diagrams below is most likely to show a family with Hereditary haemorrhagic telangiectasia? A Affected female Normal female Atfected mate ormal male KEY Homozygous Homazygous Heterozygous Heterazygous Wild Type Male Wild Type Female Male Female Female Mala Note: Completely red symbol denotes an individual exhibiting the phenotype of interest C 3 12 1/2 IV 14 14 Affected 12 12 Known camerRed-green color blindness is inherited as a sex-linked recessive trait. The gene is found on the X chromosome. How can a man with normal color vision father a daughter who is red-green color-blind? Group of answer choices The man is heterozygous for red-green color blindness. The woman with whom he mates is red-green color-blind. He can't (unless there is a mutation). The man's mother carries an allele for red-green color blindness, and the expression of the trait skipped a generation.
- Please indicate whether the followings are true or not: In maternal inheritance, the nuclear genotype of the mother determines the phenotype of the progeny. The hereditary determinantsa re nuclear genes In maternal efffect, the hereditary determinants of a trait are extranuclear In maternal inheritance, genetic transmission is only through the maternal cytoplasm In maternal inheritance, the hereditary determinants are nuclear genes In maternal inheritance, mendelian segregation is observedThe most common form of colorblindness is a recessive, sex-linked hereditary con dition caused by a defect on the X chromosome. Females are XX, while males are XY. Individuals inherit one chromosome from each parent, with equal probability; for example, an individual has a 50% chance of inheriting their father's X chromosome, and a 50% chance of inheriting their father's Y chromosome. If a male has an X chromosome with the defect, he is colorblind. However, a female with only one defective X chromo some will not be colorblind. Thus, colorblindness is more common in males than females; 7% of males are colorblind but only 0.5% of females are colorblind. (a) Assume that the X chromosome with the wild-type allele is X+ and the one with the disease allele is X. What is the expected frequency of each possible female genotype: X+X+, X+X¯, and X-X-? What is the expected frequency of each possible male genotype: X+ Y and X-Y? (b) Suppose that two parents are not colorblind. What is the…In cells with more than one X chromosome, one X chromosome is inactivated. The opsin1 gene is on the X chromosome and is expressed in the retinal cells of the eye. Mutations in this gene cause the recessive trait of colorblindness. Most women who have one mutant allele of the opsin1 gene and one normal allele of the opsin1 gene (they are heterozygous) can still see color. What is the most likely explanation for this finding? O Any mutations in the opsin1 gene on the active X can be corrected through genetic exchange (recombination) with the inactive X O If the active X has the mutant allele of opsin1 gene, the inactive X with the normal allele will be reactivated The X with the mutant allele of the opsin1 gene is more likely to be inactivated because of the opsin1 mutation Some retinal cells will have an active X with the mutant allele of the opsin1 gene, and some will have an active X with the normal allele of the opsin1 gene
- A proband female with an unidentified disease seeks the advice of a genetic counselor before starting a family. Based on the following data, the counselor constructs a pedigree encompassing three generations: (1) The maternal grandfather of the proband has the disease. (2) The mother of the proband is unaffected and is the youngest of five children, the three oldest being male. (3) The proband has an affected older sister, but the youngest siblings are unaffected twins (boy and girl). (4) All the individuals who have the disease have been revealed. Duplicate the counselors featThe young woman shown at right has albinismvery pale skin, white hair, and pale blue eyes. This phenotype is due to the absence of melanin, which imparts color to the skin, hair, and eyes. It typically is caused by a recessive allele. In the following situations, what are the probable genotypes of the father, the mother, and their children? a. Both parents have normal phenotypes; some of their children are albino and others are not. b. Both parents and all their children are albino. c. The mother is not albino, the father is albino, and one of their four children is albino.A sex-influenced trait in humans affects the length of the index finger. A short allele is dominant in males and recessive in females.Heterozygous males have an index finger that is significantly shorterthan the ring finger. The gene affecting index finger length is locatedon an autosome. A woman with short index fingers has childrenwith a man who has normal index fingers. They produce five children in the following order: female, male, male, female, male. Theoldest female offspring has one daughter with a man who has normal fingers. The youngest male among the five children has childrenwith a woman with short index fingers; they have two sons. Drawthe pedigree for this family. Indicate the phenotypes of every individual (filled symbols for individuals with short index fingers andopen symbols for individuals with normal index fingers)
- What describes a situation in which an allele's expression depends on the parent from which it was inherited? autosomal linkage chimerism genomic imprinting mosaicismIn humans, as well as in many other animals and some plants, the sex of the individual is determined by sex chromosomes. The sex chromosomes are one pair of non-homologous chromosomes: XX represents a female, while XY represents a male. When a gene for a specific trait Is attached to the X or Y chromosome, we say it is sex-linked, and when it is attached to the X chromosome, we say it is X-linked. Alleles for these linked traits, such as hemophilia or color blindness, crosses, may be recessive or dominant. This is one possible cross (above) for the X-linked condition known as hemophilia. Which pair of parents is most likely to have a hemophiliac daughter? A) carrier mother and unaffected father B) carrier mother and hemophiliac father hemophiliac mother and a carrier father D) unaffected, non-carrier mother and hemophiliac fatherIn Drosophila, the white gene located on the X chromosome affects eye color; an autosomal gene, wingless, is on an autosomal chromosome. Use the following allele symbols: Xw+ _ , Xw+Y = wild type red eyes; X-linked dominant allele Xw Xw , XwY = white eyes; X-linked recessive allele Y = Y sex chromosome vg+ = wild type wings; autosomal dominant vg = wingless; autosomal recessive Predict ratios/proportions of genotypes and phenotypes of offspring from the following cross, of a white-eyed male with wild type wings and a wild type red eyed female with wild type wings: indicate sex of offspring along with phenotypes. XwY vg+ vg x Xw+Xw vg+vg
