All of the following are required for two loci (A and B) to be considered in linkage equilibrium, EXCEPT:   a. The frequency of B on chromosomes carrying allele A is equal to the frequency of B on chromosomes carrying allele a.   b. The two loci are located very, very close together on the same chromosome.   c. The frequency of any chromosome haplotype can be calculated by multiplying the frequencies of the constituent alleles.   d. The coefficient of linkage disequilibrium (D) is equal to zero.

Q: In which circumstance would the two alleles at a locus be the same in all circumstances?  In all the…

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Q: Write the number of different kinds of phenotypes, excluding sex, you would see among a large number…

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Q: Transmission of genetic information from parent to offspring follows the rule of probability. The…

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Q: Which of the following is an explanation for independent assortment of alleles on different…

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Q: Calculate the recombination frequency from the following data collected from a breeding experiment…

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Q: Which of the following is an example of a reciprocal cross?   A. An F1 offspring is crossed back…

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Q: at two genes are linked? Describe with an example what would you expect from two linked genes…

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Q: Fruit flies are very useful model organisms that have been used to study genetics. One mutant…

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Q: Gene Combination Recombination Frequency G/H 15.1% G/I 7.5% H/I 22.6% Which of the following gene…

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Q: Suppose that you have 72 F2 flies from a cross, and expected that they would show a phenotype ratio…

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Q: Please answer fast Using the image above: A. How many different gametic genotypes can each horse…

A: Gamete  A haploid male or female germ cell that unite with opposite sex to form zygote.

Q: The distance between two linked genes is.. a) equal to the frequency of recombination between those…

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Q: To determine whether a particular trait is autosomal or sex-linked, scientists or breeders would…

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Q: What variable in the Hardy-Weinberg equation expresses the heterozygous genotype?   A. p^2 + q^2…

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Q: What can you assert regarding cytoplasmic inherited traits? A. extensive phenotypic variation…

A: Cytoplasmic inheritance It is defined as the transmission of genes which occur outside the nucleus.…

Q: An individual has the genotype Aa at the A locus and Bb at the B locus.  Assuming that the two loci…

A:

Q: Consider the recombination frequencies data below from a series of two-point crosses that were…

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Q: A testcross for two genes that are relatively far apart on the same chromosome would tend to…

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Q: Which of the following statements is a lie? Select one: a. Hair color is a characteristic, whereas…

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Q: As a biologist, you complete a test cross between fly offspring to gain information about how two…

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Q: phenotypes: 42 MP; 374 Mp; 367 mP; 27 mp.  What can you conclude from these data

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Q: Two genes are located at opposite ends of a chromosome that is 200 map units long. How are they…

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Q: Recall that, in Chapter 4, we considered the possibility that a crossover event may affect the…

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Q: An aberrant corn plant gives the following RF values when testcrossed: (The locus order is…

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Q: You observe that 50% of the offspring of a two-locus mapping cross are recombinant.  You could…

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Q: During a dihybrid cross involving two linked genes (two-point testcross), 20 flies showed…

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Q: 8) Consider the observed recombination frequencies between the following linked alleles... A-B:…

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Q: I am studying a pair of genes, A and B, that I think are both located on the same chromosome.  After…

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Q: Consider the following statements about linkage: 1. One map unit of distance is equivalent to a 10%…

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Q: Vith three COlors: Red, Yellow, and Green. You cross a true-breeding Red line and a true- breeding…

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Q: In the previous question (see text below if unsure) what is the frequency of the different…

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Q: If a recombination frequency cannot be above 50%, what does it mean if two genes are, say, 60 mu…

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Q: Under what conditions does one expect a 9:3:3:1 ratio? What may cause this ratio to vary?   A.…

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.