In the ABO blood type system, a cross between which two phenotypes could result in offspring of all four blood types?

Q: codominance

A: When ever two genes start expressing itself together it is said to be codominanace.

Q: What is an allele is lethal only under certain conditions?

A: Lethal alleles as the term suggests are the death-causing alleles and occur due to mutation.  The…

Q: Which of the eight parents are definitely heterozygous for Type O Allele?

A: ABO blood grouping is a type of multiple allelism. The different type of alleles are -  Type A (IA)…

Q: What is a genetic cross?

A: Genetics is concerned with the study of genes and their heredity from parents to offspring. A…

Q: Following a cross between two, dihybrid, heterozygous individuals, what fraction of the offspring…

A: In the question, it is given that the cross is made between the two dihybrid heterozygous…

Q: If an allele is dominant then only one copy is sufficient for it to be visible in the phenotype.…

A: The objective of the question is to understand the concept of dominant alleles in genetics and how…

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: In pea plants, the color yellow is dominant over the color green. If a homozygous yellow plant is…

A: Gregor Johann Mendel was an Austrian Monk, who is known as the father of genetics published the…

Q: In mice, short hair is dominant over long hair. If a heterozygous shorthaired male is crossed with a…

A: A gene is the basic structural and functional unit of heredity and is made of DNA(deoxyribonucleic…

Q: In flies, small wings are recessive to normal wings. If a cross between two flies produces 8…

A: The alleles are generally of dominant and recessive type and some other forms like codominant are…

Q: Crossing a Great Dane and a Chihuahua is likely to be unsuccessful, even though they are members of…

A: Genetic conditions are transferred from parent to offspring. Sometimes, they get expressed in the…

Q: Let’s suppose gene A and gene B are closely linked to each other. An AaBb individual (with the…

A: Given,  gene A and gene b are linked closely to each other. An individual with genotype AaBb is…

Q: In the pea plant, the green pod color allele is dominant to the yellow pod color allele. Set-up a…

A: The alleles are generally of dominant and recessive type and some other forms like codominant are…

Q: The A & B antigens in humans may be found in water-soluble forms in secretions, including saliva of…

A: Antigens are generated in the human body by the allelic activity of the A, B, and O group loci in…

Q: A different walnut rooster was crossed to a rose hen, and all the progeny were walnut. What are the…

A: The comb of a rooster or chicken is referred to as a fleshy structure that grows on top of the head.…

Q: Duroc Jersey pigs are typically red, but a sandy variation is also seen. When two different…

A: The pattern of inheritance seen in Duroc Jersey pigs is an example of Mendelian genetics, which…

Q: Assuming that the genes are unlinked, what will be the phenotypes of the offspring from the cross…

A: Crossing over or chromosomal crossover refers to the event in sexual reproduction in which two…

Q: humerous progený per cross, a lethal allele of a certain the lethal allele is a recessive or…

A: The field of genetic is the study of heredity and the different variations of those genes, which is…

Q: the F2 of a dihybrid cross gives a 9:3:4 ratio, what will be the ratio of phenotypes if one takes an…

A: Epistasis:Epistasis is a phenomenon in which the phenotypic expression of one gene is influenced by…

Q: Will a cross breeding between a dog and an cat is possible? explain

A: Breeding is defined as sexual reproduction occurring between two organisms of the opposite sex of…

Q: What genotypes and phenotypes are expected from a cross between a plant that is heterozygous (Rr)…

A: Expected Genotypes are Rr, rr, Rr, rr and Phenotypes are 50% heterozygous and 50% green seeds.

Q: List at least five phenomena that can alter expected Mendelian phenotypic ratios in genetic…

A: Mendelian inheritance is the process of transmission of characters from parents to offspring.…

Q: In sasquatches, solid coat color (D) is dominant over spotted coats (d) and straight fur (R) is…

A: A test cross involves the mating of an individual with recessive traits. A recessive trait can only…

Q: In guinea pigs, the gene for black coat color is dominant to the gene for white coat color. What…

A: The transfer of character from parents to offspring is known as inheritance. The genes for coat…

Q: Predict the probability (using a Punnett square) of producing an offspring affected by a single gene…

A: Single gene disorders are caused by DNA changes in one particular gene. They have predictable…

Q: Explain the Limitations of two-point crosses

A: Answer: Introduction: A two-point test-cross is performed to estimate the recombinant frequency…

Q: Is blood type an example of pleiotropy?

A: Pleiotropy is a condition in which a single gene controls multiple phenotype characteristics or…

Q: terms of a chi-square analysis, what ratio would be tested for the offspring of a monohybrid cross…

A: The Chi-Square test is a statistical test used to infer how closely the observed data suits the…

Q: In a particular plant, green seed color is dominant to yellow seed color. If all of the offspring of…

A: Since the green seeds are dominant to yellow, the allele for green seeds can be represented with…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.