A female animal with genotype A/a ⋅ B/b is crossed with a double-recessive male (a/a ⋅ b/b). Their progeny include 442 A/a ⋅ B/b, 458 a/a ⋅ b/b, 46 A/a ⋅ b/b, and 54 a/a ⋅ B/b. Explain these results.

Q: Calculate the probability of either all-dominant or all-recessive genotypes for the alleles A, B, E,…

A: For each gene pair, the probability of getting a homozygous dominant genotype (e.g., AABB) is 1/4…

Q: The following two genotypes are crossed: AaBbCcdd x AabbCcDd. What will the proportion of the…

A: Genotype refers to the genetic makeup of an organism, which determines its inherited traits.…

Q: What is the gametio ratio op each cross ? a. Aabb DD x AABB Dd b. Ee Ff X EeFf

A: The gametes are the unit of sexual reproduction and according to the law of independent assortment…

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A: In the given context, there are two independent genes, denoted as A and B, which are responsible for…

Q: In pigs, let’s assume that a straight tail (T) is dominant to a curly tail (t).  Let us also assume…

A: According to the Mendelian inheritance each gene has two alleles that determines the phenotype of an…

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A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is…

Q: n an F1 cross, Y/y x Y/y, 3/4 of the plants are yellow and 1/4 of the plants are green. Determine…

A: When two dominant parents produce a 3:1 phenotypic ratio in the offspring, it indicates that both…

Q: In the shorthorn breed of cattle, The red and white coat colors are codominant with each other with…

A: Codominance occurs when both parental characteristics are present in the F1 generation. The progeny…

Q: Please explain to me about Mendel monohybrid crosses and the expected ratio of: A) pure cross B) F1…

A: Mendel monohybrid cross refers to the cross of individuals who are different in only one trait. For…

Q: 1) Imagine you discover a new mutant strain of tailless mice. Upon looking closer, you notice that I…

A: A test cross is defined as the method to explore the organism's genotype. Thus, it is an…

Q: What gamete must be donated by the father monster, and what is its probability? a) g l — 12.5% b) g…

A: Gametes are produced by the process of meiosis.

Q: The non-wild-type alleles are k (clipped wings), l (long tail), and m (magical powers). The parental…

A: Here the test cross that produced 1572 offspring was conducted between k/k+  l/l+  m/m+…

Q: What will be the phenotypic ratio for a heterozygous cross between Pp and Pp?

A: An allele is a variant form of a given gene.  Phenotype is the observed physical traits of an…

Q: Define wild-type alleles (+)

A: Wild type allele is the phenotype of the organism that is the product of standard normal alleles.…

Q: A fly that is heterozygous at 3 different, independent, autosomal loci (AaBbCc) is crossed to an…

A: The genotype is defined as the genetic constitution or composition of an individual. Thus, it is the…

Q: What’s in plasma?

A: Blood plasma is the yellow coloured fluid present in the blood which can be obtained through…

Q: What will be the results of the following crosses, where N is black, n is brown, L is short hair and…

A: A dihybrid cross represents the combination of two species that are hybrid in two ways. A…

Q: ● ● ● 4.1 3. /1/17 Consider the selfed offspring of a AaBbCcDd individual: What is the probability…

A: In the given question, we are given the genotype of the F1 individual that is AaBbCcDd. In F2…

Q: From parents of genotypes A/A ⋅ B/B and a/a ⋅ b/b, adihybrid was produced. In a testcross of the…

A: results provide :

Q: dihybrid cross

A: The dihybrid cross is defined as the mating between 2 organisms which are each heterozygous for 2…

Q: Question 3 +6Probability of producing a child that will phenotypically resemble either one of the…

A: In a cross or breeding experiment, the number of potential genotypes is graphically represented by…

Q: Consider three genes L, U, and W, for which the count of F2 phenotypes after a 3-point cross is as…

A: The parent gametes would be having the highest frequency thus they are IUW and Luw. The gametes…

Q: Why can a person carrying a translocation be normal except for theinability to have children?

A: Translocation is a hereditary change were a piece of one chromosome servers and connects to another…

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A: In this question, we are given with two genes A and B. These genes are such that allele A is…

Q: What will be the PR and GR of the following crosses? Give also their phenotypes.  (Designate your…

A: Genotype can be defined as the total number of genes present in the individual. The genotype focuses…

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Q: In poultry , the genotype-phenotype relationship for comb shape are R/-P/-, walnut. R/-p/p rose,…

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Q: A cross is made between a heterozygote, +++/abc, and a recessive homozygote, abc/abc. Analysis of…

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Q: ine vector. Give the properties of a “Good Vector”.

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Q: A recessive maternal effect mutant in zebrafish, called ichabod, results in embryos lacking heads…

A: Maternal effect in zebrafish is a situation where the phenotype of an organism is determined not…

Q: What is the probability of producing a child that will phenotypically resemble either one (one OR…

A: A genetic cross is an experimental breeding or mating between two individuals (typically plants or…

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 are the resulting phenotypes from a dihybrid cross between two individuals with curly hair and…

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Q: Assume no Bombay allele for this entire question.) Consider a cross between someone with blood type…

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Q: . a. A mouse cross A/a ⋅ B/b × a/a ⋅ b/b is made, and inthe progeny there are25% A/a ⋅ B/b, 25% a/a…

A: Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half…

Q: n the previous question (PpYyRr * Ppyyrr), compute the following probabilities. SHOW YOUR SOLUTIONS

A: The given plant is triploid.  Symbol  For purple = PP(dominant) For yellow seed = YY(dominant) For…

Q: An individual with the genotype F/f Ÿ• G/g Ÿ• H/h is testcrossed. Among the progeny, the proportions…

A: There are three genotypes :- F/f , G/ g  , H/ h

Q: How many distinct genotypes are produced from a self cross of of the “tetrahybrid” A/a; B/b; C/c;…

A: Introduction :- The term "genotype" broadly refers to an organism's genetic make-up; in other words,…

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Q: A man and a woman do not have hemophilioa, but the womans father did. (Hemophilia is X-linked…

A: (Note: According to the given guidelines, we are supposed to answer only one question. Please repost…

Q: A strain of Neurospora with the genotype H ⋅ I is crossedwith a strain with the genotype h ⋅ i. Half…

A: Recombination of genes during meiosis occurs by the process of crossover.

Q: In a dihybrid cross of two bi-allelic Mendelian genes, A (two alleles – completely dominant A and…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

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.