Q: Define recessive allele.
A: Genetic is the branch of science that deals with genetic material like genome, genes, DNA, and…
Q: Two genes, A and B, exhibit duplicate recessive epistasis. Which genotype would give the recessive…
A: Duplicate recessive epistasis is a complementary gene interaction in which the recessive allele of…
Q: What are two different alleles for a trait?
A: A trait is defined as the particular characteristic such as skin color, height, eye color etc. The…
Q: If someone did have the same phenotype, would they necessarily have the same genotype? Why?
A: Genotype is the genetic makeup of an organism. Phenotype is the observable characteristics that…
Q: Which is a non Mendelian trait?
A: The classical genetics or traditional genetics was formed by Gregor Mendel in which he framed…
Q: What are the alleles present in an individual?
A: A gene is a precise region of the DNA which regulates a specific trait. An allele is defined as one…
Q: What is the gene that goes with a trait called?
A: A gene is the basic physical unit and functional unit of heredity. Theses are made up of DNA. Some…
Q: What is required in the genotype of an individual to show a recessive trait?
A: Genotype It is defined as the reference to the alleles (variants of the gene) an individual carries…
Q: Which genotype would result in the recessive phenotype?
A: The individual collection of genes represents the genotype. It involves the inheritance of two…
Q: If two parents have a dominate trait, can they have a child that has a recessive trait?
A: If two parents have a dominate trait, can they have a child that has a recessive trait? Ans ) Yes…
Q: What do the terms genotype, phenotype, dominant, recessive, homozygous, and heterozygous mean?
A: Genotype : is an organism's complete set of genetic material. Phenotype: is the set of observable…
Q: What is the presence or absence of the dominant alleles of two genes?
A: An allele is an alternative form of a gene (one member of a pair)which is located on the specific…
Q: Why are some alleles dominant and some recessive?
A: A short-portion of the DNA is termed as a gene. The genes are the essential functions as well as…
Q: What is the difference between homozygous and heterozygous alleles?
A: The homozygous and heterozygous genotype is essential for determining the characteristics whether it…
Q: What is the difference between multiple alleles and polygenic inheritance?
A: Multiple Alleles -- Allele --( Allelomorphs ) It is an variant of a gene , some genes have variety…
Q: If a mutation in a dominant gene occurred during gamete formation which resulted in a new recessive…
A: Alleles are generally defined as the variants of a gene. Based on the alleles present in the genome,…
Q: Define recessive
A: A recessive trait can express itself only in the absence of a dominant trait. When present with its…
Q: Why are some alleles dominant to other alleles?
A: In 1865, Gregor Mendel an Austrian scientist experimented on garden pea hybrids and published his…
Q: Which gene is inherited from the father only?
A: A gene is a stretch of nucleotides present in the DNA molecule. It encodes information for the…
Q: What is an individual with a homozygous genotype?
A: Genotype refers to the genetic composition of an organism. It is of three types, namely homozygous…
Q: If a girl has blood type O, what could be the genotypes and corresponding phenotypes of her parents?
A: The blood group of people is determined from the genes, which are inherited from their parents. A,…
Q: What is the relationship of the gene to the trait?
A: Gene is a unit of heredity which is transferred from a parent to offspring which determine some…
Q: If both parents have an autosomal dominant trait, what can you say about their children? Explain
A: Autosomal dominance is a pattern of inheritance character of some genetic dis order. Autosomal…
Q: If the blood type of a person is O, does the person possess multiple alleles? Explain
A: Blood type in humans is broadly classified into four categories A, B, O, and AB depending on the…
Q: Explain how polygenic inheritance differs from inheritance that is controlled by only one gene?
A: Genetics is a part of science worried about the investigation of genes, genetic variation, and…
Q: What is the difference between dominant and recessive trait?
A: A gene is the basic physical and functional unit of heredity and is composed of DNA(deoxyribonucleic…
Q: What pattern of inheritance do dominant traits show?
A: There are two types of chromosomes present in human: autosomes and sex chromosomes. The transmission…
Q: Is TT heterozygous dominant or recessive?
A: A diploid organisms contains two copies of a gene in two homologous chromosomes which are known as…
Q: Difference between dominant factor and recessive factor?
A: Factors or traits are determined by the genes. Each gene contains two alleles and these alleles can…
Q: If two parents have a recessive trait, can they have a child that has a dominant trait?
A: Introduction Even if only one copy of the dominant trait exists, dominant traits are always…
Q: Calculate the probability of inheriting a particular genetic disorder by using a Punnett square.
A: Introduction Chance events are generally characterized by probability. Probability is defined as the…
Q: What is a trait is intermediate of parents?
A: According to Mendelian inheritance, a single character is controlled by one or more genes where each…
Q: What pattern of inheritance shows the full and separate phenotypes of two alleles in heterozygous…
A: Genes are inherited from parents to offspring. Allele is a form of a gene. Homozygous individuals…
Q: What is polygenic inheritance?
A: Sometimes a single phenotypic trait is the controlled by many genes together. Each gene can…
Q: Contrast genotype and phenotype.
A: The genotype is a set of genes in DNA responsible for specific trait while the phenotype is the…
Q: What is a gene with more than 2 alleles?
A: Genetics is a branch of science that deals with the study of genes, heredity, and genetic variation…
Q: What is a phenotype?
A: Phenotype is derived from two Greek words: phainein, which means “to show,” and typos, which mean…
Q: How many copies of each gene for the trait does each offspring receive?
A: At the time of gamete formation by the proce4ss of meiosis, the number of chromosomes reduced by…
Q: Define phenotype
A: Genetics is the branch of Biology dealing with the study of genes including their structure,…
Q: What is the most common autosomal recessive disease?
A: Autosomal recessive disease refers to the type of disease that can be passed down through families.…
Q: If the parents are both homozygous for the characteristics, what are their genotypes?
A: Homozygous means both the alleles are alike. Heterozygous means both the alleles are different.
Q: a parent possesses two copies of each gene. When this parent passes on its alleles for a gene, how…
A: The principle of segregation explains how the variants of a gene (pairs) are divided into…
Q: What is an allele?
A: Genes are basic units of inheritance. Gene is a specific sequence of DNA which encodes specific…
Q: Does a trait always go together with another trait in one individual even if the autosomal traits…
A: The segment of DNA that can produce a polypeptide is called gene. it is an inherited factor that…
Q: What is a recessive gene?
A: Gene is the fundamental unit of heredity. Alleles are contrasting traits of a gene.
Q: What is the physical change of one allele in a heterozygote into the other?
A: Mendel suggested that "heritable components" named genes were defined by traits. In various…
Q: What must be true about the genotypes of parents who have a child who has a recessive trait?
A: Given: the child has a recessive trait, so let the genotype of the child be - aa for dominant trait…
Q: What are three similarities and three differences between Autosomal Dominant and Autosomal…
A: Patterns of inheritance in people incorporate autosomal strength and recessiveness, X-connected…
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- What is a carrier of a genetic trait?Albinism is an autosomal (not sex-linked) recessive trait. A man and woman are both of normal pigmentation and have one child out of three who is albino (without melanin pigmentation). What are the genotypes of the albino's parents? One parent must be homozygous for the recessive allele; the other parent can be homozygous dominant, homozygous recessive, or heterozygous. Both parents must be homozygous dominant. One parent must be heterozygous; the other parent can be homozygous dominant, homozygous recessive, or heterozygous. Both parents must be heterozygous. One parent must be homozygous dominant; the other parent must be heterozygous. O000One form of the bleeding disorder known as von Willebrand disease is an autosomal recessive disease. A man who is a carrier marries a woman who is also a carrier of the disease. (a) What percentage of their children are likely to have a disease phenotype? (b) What percentage of their children are likely to have a normal phenotype? (c) What percentage of their children are likely to be carriers of the disease?
- For a recessive condition, two normal heterozygous individuals have children. What is the likelihood of their children being affected by this condition? What is the likelihood of their children being carriers without the condition? What is the likelihood of their asymptomatic children being carriers? Suppose that an individual with the condition has children with a heterozygous individual, what is the likelihood of their children being carriers?Hemophilia is a sex-linked recessive trait. A male hemophiliac and phenotypically normal female have a son with hemophilia. They would like to have one more child. What is the probability of having a child without hemophilia? Explain using a Punnett square. Is it possible for a girl to be born with hemophilia? Explain.In genetics, what does a genotype of Hh signify? Choose 1 answer: Choose 1 answer: (Choice A) A Homozygous; two dominant alleles (Choice B) B Homozygous; two recessive alleles (Choice C) C Heterozygous; one dominant allele and one recessive allele (Choice D) D Homozygous; one dominant allele and one recessive allele
- If there is a possibility of four different genotypes in the offspring that result from a dominant-recessive inheritance, and if the couple has four children, would they definitely have children with one expressing each genotype? Explain.A WOMAN IS HETEROZYGOUS FOR TWO HARMFUL RECESSIVE ALLELES IN DIFFERENT CHROMOSOMES, ONE FOR PHENYLKETONURIA (PKU) AND THE OTHER FOR CYSTIC FIBROSIS (CF). SHE MARRIES AN UNAFFECTED MAN WHO IS A CARRIER FOR NEITHER DISEASE. IF SHE HAS A DAUGHTER, WHAT IS THE PROBABILITY THAT THE CHILD WILL CARRY NEITHER OF THE RECESSIVE ALLELES? EXACTLY ONE? BOTH?Albinism is a recessive trait. Two individuals who both have normal pigmentation have one child out of three who has albinism (without melanin pigmentation). What are the genotypes of this child's parents?
- Huntington’s disease, a neurodegenerative genetic disorder that typically becomes noticeable in middle age, is due to an autosomal dominant allele. Sickle cell anemia, on the other hand, is a genetic blood disorder due to a recessive allele. Mary is a carrier of the allele for sickle cell anemia but has no sign of any neurodegenerative disorder in her family. She married Paul whose father died of Huntington’s disease. His mother, however, is not inflicted with that condition. Neither of his parents exhibits sickle cell anemia. What are the genotypes of Jane and Paul? If they plan to have four children, what is the probability that: all their children will be normal? _________________________________ they will have a son with Huntington’s disease? _________________________ they will have a daughter inflicted with both conditions?________________Hemochromatosis is an inherited disease caused by a recessive allele. If a woman and her husband, who are both carriers, have three children,what is the probability of each of the following? (a) All three children are of normal phenotype. (b) One or more of the three children have the disease. (c) All three children have the disease. (d) At least one child is phenotypically normal.Huntington’s disease, a neurodegenerative genetic disorder that typically becomes noticeable in middle age, is due to an autosomal dominant allele. Sickle cell anemia, on the other hand, is a genetic blood disorder due to a recessive allele. Jane is a carrier of the allele for sickle cell anemia but has no sign of any neurodegenerative disorder in her family. She married Paul whose father died of Huntington’s disease. His mother, however, is not inflicted with that condition. Neither of his parents exhibits sickle cell anemia. What are the genotypes of Jane and Paul?