15. B. You set up a cross between a male fruit fly with lobe eyes and a true breeding female fruit fly with reduced bristles and disrupted wings. In the F1 offspring you see the all the flies have WT bristles and WT wings. However, half the flies have WT eyes and half the flies have lobe eyes. You take 20 of the F1 female flies with lobe eyes and mate them to 20 true breeding male flies with reduced bristles and disrupted wings and observe the following offspring: 164 lobe eyes and reduced bristles 137 lobe eyes and disrupted wings 638 reduced bristles and disrupted wings 152 reduced bristles 40 wildtype 175 disrupted wings 659 lobe eyes 35 lobe eyes reduced bristles and disrupted wings Calculate the interference for this region.

Q: 5. Design a mating between a female with these three traits: purple (eye color), black (body color),…

A: Linkage is a phenomenon in which genes are placed on the same chromosome in close proximity to each…

Q: How many genotypes are possible among the offspring? How many phenotypes are possible among the…

A: Genotype of male- XY  Genotype of female -XX In fruit fly genotypes is same as human. They have 2…

Q: 4. Thomas Morgan collected the following crossover gene frequencies while studying Drosophila.…

A: If the genes are located on the same chromosome then they are classified as linked genes and they…

Q: 11. In cats, the fur color allele is located on the X chromosome. Cats can have alleles for black…

A: In case of cats , gene that code for coat colour is present on the X chromosome. Two fur colour are…

Q: 12. A summer student accidentally brought in a new heterozygous strawberry plant (with small red…

A: Large berries (L)  =dominantSmall berries (l) = recessive Red berries (R) = dominantBlackberries (r)…

Q: 4. In Drosophila, eye color is determined by two different genes located on different chromosomes. A…

A: Given information Eye color is determined by two genes. b gene is autosomal and produces brown eye…

Q: In the fruit fly Drosophila, homozygous recessive mutations in the tafazzin gene cause a muscle…

A: When we cross a heterozygous female and a homozygous recessive male for both genes we obtain…

Q: 26. In sheep, eye color is controlled by a single gene with two alleles. When a homozygous…

A: *NOTE: Kindly repost for other questions. Dear Student as per the guidelines we are supposed to…

Q: 19. If you cross a homozygous dominant individual with a heterozygous individual, what percentage of…

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

Q: 2. In Drosophila sp. Red eyes are dominant over white eyes. Normal wings are dominant over vestigial…

A: Let R allelle encodes red eye and it is dominant over r allele.  N encodes normal wing and it is…

Q: 9. In hamsters, black fur (B) is dominant over brown fur (b) and long fur (L) is dominant over short…

A: It is given that black fur is dominant (B) over brown fur (b) whereas long fur (L) is dominant over…

Q: 5. The horned / hornless traits in sheep are examples of sex-influenced traits. Horned (H) acts as a…

A: In human there are 22 pairs of autosomes and 1 pair of sex-chromosomes (X and Y). Sex-linked…

Q: 2.) In fruit flies, L = long wings and 1 = short wings. When a long-winged fly is crossed with a…

A: In the given question, The dominant trait is Long wings which can be denoted by L. The recessive…

Q: .Hemophilia is a sex-linked recessive condition that results in deficient blood clotting. The…

A: Hemophilia is a genetic bleeding disorder that happened by change or mutation in genes. In this…

Q: 3. Fruit flies are small flies attracted to the smell of fermenting fruit. Red eyes are dominant in…

A: Genetics is the branch of biology that deals with the study of genes, their variation, and heredity…

Q: 2. In frost moths, two alleles of one gene determine the character difference of spotted versus…

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

Q: In fruit flies red (A) eyes are dominant to apricot (a) eyes, and normal (P) wings and dominant to…

A: Genotype is defined as the genetic constituent of an individual. Whereas phenotype is defined as…

Q: 2. A dark-eyed man mates with a light-eyed woman and they have ten dark-eyed children. a. What is…

A: Humans are diploid organism. So, they contain each chromosome and genes in two copies.  According to…

Q: 8. Which of the following is true given a mating between a woman who is a carrier for color…

A: 4) This couple could have a color blind son.

Q: Chinchillas are small, furry South American rodents. They were originally brought to the United…

A: In this question it is to describe that grey heterozygous parent and a violet parent cross matching…

Q: Part 2. Do one more example of a monohybrid cross. This time assign the letter “B" for onion taste.…

A: Introduction A gene is consisting of a pair alleles/ factors and these alleles can be dominant or…

Q: 6. In Drosophila, Bar eyes (B) is dominant trait located on the X chromosome, apterous wings (ap)…

A: The product rule is used in this case. The overall probability is calculated by the product of…

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.