In an attempt to breed winter barley that is resistant to barley mosaic virus, agricultural researchers cross a susceptible domesticated strain with a resistant wild strain. The F1 plants are all susceptible, but when the F1 plants are crossed with each other, some of the F2 individuals are resistant.  Is the resistance allele recessive or dominant?  (Note: susceptible means able to get the viral disease, while resistant means not able to get the disease)   A) The resistance allele must be recessive B) The resistance allele must be dominant

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A: The correct answer is b) RrFf x RrFf. Here's how we can arrive at this conclusion:Analysis of the…

Q: The table below shows the progeny of a test cross of a heterozygote (HhFfGg). Each row shows the…

A: Alleles Type Count H G F Parental 124 h g f Parental 119 H g F Double cross over 15 h G f…

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A: Tetrad analysis:  The tetrad analysis is usually done to determine the distance between the genes…

Q: The table below shows the progeny of a test cross of a heterozygote (JjBbRr).  Each row shows the…

A: Q.Ans:- Explanation:- Recombination Frequency:- Recombination frequency is defined as how many…

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A: Gene interaction is a type of interaction between two or more genes which results in a single…

Q: Two corn plants are studied. One is resistant (R) and the other is susceptible (S) to a certain…

A: Maize, often known as corn in North American and Australian English, is a cereal grain that was…

Q: were observed and used to make a map of these genes.  Calculate the interference.…

A: Answer. The linkage of the genes in a chromosome can be in the form of a genetic map or linkage map.…

Q: Consider the first category of test-cross offspring shown in figure 8.2 (+b, LS). Consider also that…

A: In the test-cross in question, heterozygous female flies with the genotype +b, LS were used. In…

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: For a given cross, the expected number of double recombinants is 18 and the observed number of…

A: The measure of genetic linkage is termed as recombination frequency, which is used in the…

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.

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A: Gene is the segment of DNA responsible for heredity. Two or more alternative forms of genes…

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A: Scientists utilize genetic markers and monitor their recombination frequency during the development…

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A: A type of tomato (Solanum Lycopersicum) produces fruit in three possible colors: red=RR orange =GG…

Q: Consider the following genotype: ● ● ● (P1) A/a BC/bc_D/d E/e FgH/fGh X (P2) A/a BC/bc D/d E/e…

A: Recombination is a process that produces gametes with allele combinations that weren't present in…

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: In Neurospora, a mutant strain called stopper (stp) arose spontaneously. Stopper showed erratic…

A: The genes are the hereditary unit of an organism which are passed on from the parental generation to…

Q: When one crosses two corn plants with green seedlings, the following progeny is obtained: 358 green…

A: Phenotypic ratio for the given numbers is, = 358/32, 87/32, 32/32 = 11.1, 2.7, 1 = 12 : 3 : 1…

Q: Line 1 Line 2 Line 3 Line 4 Line 5 Line 6 Line 7 Line 8 Line 9 Line 10 Line 1 Line 2 + Line 3 + ??…

A: Groups of mutations that do not complement each other constitute a complementation group, which is…

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A: Red blood cells(RBCs) consist of different antigens on their surface. The presence of these antigens…

Q: A RFLP is discovered that is linked to the gene for Duchenne’s muscular dystrophy (DMD). DMD is an…

A: RFLP (Restriction Fragment length polymorphism) : RFLP (Restriction Fragment length polymorphism is…

Q: man and a woman have a child with cystic fibrosis. Neither parent has cystic fibrosis. How could…

A: Cystic fibrosis is an inherited life-threatening disorder that affects the lungs and digestive…

Q: Line 1 Line 2 Line 3 Line 4 Line 5 Line 6 Line 7 Line 8 Line 9 Line 10 Line 1 Line 2 Line 3 + ??…

A: Can one gene be in two different complementation groups? Answer - Yes. One gene will be in two…

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: Consider the genetic cross for absent-mindedness, which is a dominant trait. All of the offspring…

A: A dominant trait is an inherited feature that occurs in an offspring when a dominant allele is…

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A: Storage lipids, also known as triacylglycerols, membrane lipids, which include glycerophospholipids…

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Q: The attached image is a pedigree of a family with a history of sickle cell anemia (the individuals…

A: Sickle cell anemia is a genetic condition caused by a mutation in the gene that codes for…

Q: You test cross an F1 fish (with genotype BbCc) and obtain 1000 offsprings in F2 generation with the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: You have a garden and some pea plants have dark leaves and others have striped leaves. You conduct a…

A: A Monohybrid cross is a cross between two homozygous individuals who have distinct alleles for one…

Q: Locus A has two alleles (A and a) while locus B has two alleles (B and b). The recombination…

A: Recombination is the process by which genes separate from each other during the crossover of…

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A: The greater number are of parental type in case of three point test cross. And the lowest number are…

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: True breeding species are those who can pass to all their offspring specific characteristics. True…

Q: A SNP marker is found linked to the cystic fibrosis gene. Cystic fibrosis is an autosomal recessive…

A: Cystic fibrosis follows autosonal recessive inheritance. This means that both the alleles should be…

Q: diploid to sporulate. When you score each spore in the ascus you find the following portions: 518…

A: Genes are the hereditary units that are transmitted from one generation to another generation. The…

Q: If the disease gene is 10 m.u. from the RFLP marker, what proportion of the F2 will have the gel…

A: Linked and unlinked genes If the genes are present in close proximity to each other they have…

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.