If a homozygous recessive individual is crossed with a homozygous dominant individual, what percent of their offspring will be heterozygous?

Q: A heterozygous free-lobed man is mated to a heterozygous free-lobed woman. What are the genotypes…

A: Genotype is the genetic makeup of an organism.  It consists of 2 alleles in an individual.

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: Albinism is an autosomal (not sex-linked) recessive trait. A man and woman are both of normal…

A: Introduction Albinism Is A Genetic Condition That Causes A Person's Skin, Hair, And Eyes To Be…

Q: Suppose that the short allele is a meiotic drive gene, and 80% of the gametes from a heterozygous…

A: Introduction  Inheritance is the ability of organisms to pass on qualities to their offspring…

Q: Two sisters have a father who is homozygous for his recessive blue eyes and a mother who is dominant…

A: If the father is homozygous for a recessive pair of blue eyes, its genotype will be XbYb, whereas in…

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: A human female who is heterozygous of the sex-linked trait causing red-green color blindness marries…

A: As a sex-linked characteristic, colour blindness is caused by a gene which is found on the sex…

Q: Both red/green color blindness (R=normal, r=colorblind) and Duchenne-type muscular dystrophy…

A: X-linked recessive inheritance is the genetic condition that can be passed from parent to child…

Q: In humans, six fingers (F) is dominant to five fingers (f). Assume both parents are heterozygous for…

A: The presence of 6 fingers is dominant over the presence of 5 fingers.

Q: In cats, coat color is determined by allelic variation at a single autosomal locus, with black fur…

A:

Q: Is this pedigree recessive or dominant? Is it autosomal or sex-linked?

A: Pedigree is defined as the diagrammatic representation of individuals of a family for a particular…

Q: In a cross between fair skin, black hair (heterozygous for all these traits) with brown skin, red…

A: BASIC INFORMATION  HETEROZYGOUS - Every gene has two characters one being the dominant and other…

Q: Duchenne muscular dystrophy (DMD), marked by muscular degeneration, results from an X- linked…

A: Duchenne muscular dystrophy is a X- linked inherited disease which is characterized by degeneration…

Q: Cystic fibrosis is a disease that is passed down through the generations. The recessive alleles for…

A: Genes carry the traits from one generation to another. Genes that code for different forms of a…

Q: In the cross TtPpAa x ttPpaa, what fraction of offspring are predicted to be homozygous recessive…

A: We can better grasp how features, like height or eye color, are handed down from one generation to…

Q: Over the years, Mendel experimented with more than 30,000 pea plants. Why did Mendel collect data on…

A: Mendel experimented with more than 30,000 pea plants and collected the data of many plants.

Q: Purple Hair is dominant. Blue hair is recessive. One parent is heterozygous; the other parent has…

A: Genes are the structural and functional units of heredity that carry coded genetic information in…

Q: In guinea pigs, black is the dominant fur color. If one half of a litter is white and half of the…

A:

Q: Can Mendel’s principle of segregation be illustrated by a cross between two homozygous dominant…

A: The law of segregation proposed by Mendel states that during the gamete formation, each gamete…

Q: What is an individual that bears a dominant normal allele that masks the effects of the recessive…

A: The gene is the basic physical and functional unit of heredity. It consists of a specific sequence…

Q: What is the concept of dominance?

A: Dominance is the power and influence over the others. In genetics, it is the process of one allele…

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

A: dihybrid organism is one that is heterozygous at two different genetic loci.

Q: What does homozygous black mean?

A: in animals like cattle, horses, mice etc, their coat/fur coat is determined by what alleles they…

Q: In a cross between fair skin, black hair (heterozygous for all these traits) with brown skin, red…

A: The genes are found on different chromosomes, occasionally far apart, but on the same chromosome,…

Q: In the cross between a female AaBbccDdee and male AabbCcDdee, what proportion of the progeny are…

A: In this type of genetic cross, each gene is crossed separately and probability of the desired…

Q: Ragweed hay fever (R) is dominant to the lack of allergy (r). A man who doesn’t suffer from ragweed…

A: Given: Ragweed hay fever (R) is dominant to the lack of allergy (r). Man - rr woman - Rr (Her mother…

Q: If there is a possibility of four different genotypes in the offspring that result from a…

A: A gene can be referred as a unit of hereditary. They pass the information from one generation to…

Q: A woman with blonde hair and blues eyes, which are recessive genes, marries a heterozygous man who…

A: Traits are characteristic features that are unique to particular individual . As per the question ,…

Q: What would be the probability of having 2 children showing the dominant character and 2 showing the…

A: An allele is a pair of genes which appear at a particular location on a particular chromosome and…

Q: Why is the progeny always tall when a tall pea plant is crossed with a short pea plant?

A: The offspring of two parents can be distinct from both parents due to the formation of unique…

Q: What is the law of dominance?

A: Law of dominance is one of three laws given by mendel to comprehend the exchange of qualities from…

Q: Imagine a test cross of an unknown individual that results in all 1000 offspring being homozygous…

A: The test cross involves crossing an individual with an unknown genotype (but expressing the dominant…

Q: Is blood type an example of pleiotropy?

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

Q: In pea plants, smooth peas is dominant to wrinkled peas. When Mendel crossed true breeding smooth…

A: Let us assume the dominant smooth character of peas is represented by (S) while the recessive…

Q: If two heterozygous individuals that carry an allele that is 75% penetrant in the heterozygous…

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: six fingers (F) is dominant to five fingers (f). Assume both parents are heterozygous for six…

A: Genotype - It is the genetic makeup of any individual. It gives information about exact genetic…

Q: Brown eye color is dominant to blue eye color. Individual A is heterozygous for brown eyes.…

A: Mendelian monohybrid cross takes a pair of contrasting characters into account. Here it has been…

Q: Can A+ father and B+ mother carries the recessive i allele (aka the o allele) and each parent is…

A: 25% chances i.e 4 children the couple will have 1 child with O+ blood group with Rh factor. Red…

Q: For individual lll-6, how do you get 2/3 for the probability of heterozygous? What are the three…

A: There are four offspring, and one individual III- 5 is affected . Gametes A a A AA Aa a Aa aa…

Q: Are both incomplete dominance and codominance illustrated with two capital letters?

A: The type of relationship between alleles,with a heterozygous phenotype intermediate between the two…

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.