Formulate a hypothesis and defend your hypothesis with a clear explanation of wh
ID: 166480 • Letter: F
Question
Formulate a hypothesis and defend your hypothesis with a clear explanation of why it would explain the observed results
Submit Assignment WA #6 complementing alleles Due Mar 12 by 11:59pm Points 5 Submitting a text entry box You work with a variety of apples that are red. Over the years, you've seen some variants (mutants) show up among your plants and decide to investigate this matter further. You come up with two true-breeding variants, one that gives yellow apples, and one that gives orange apples Through a series of monohybrid crosses, you establish that both are caused by recessive alleles. And now you decide to see how those genes interact between them (if at all). But first things first you decide to determine if the alleles complement. You suspect that they will, because each gives you a different phenotype... but geneticists have seen some really weird things, trust me. So you set up a cross between yellow-apple and orange-apple trees. If the alleles complement, then you expect 100% of the progeny to have red fruit. And yet... 50% of the progeny shows up with red fruit, and 50% of the progeny has yellow apples. n 200 words or fewer, entertain an explanation of what may have happened here (i.e. formulate a hypothesis). Make sure to defend your hypothesis with a clear explanation of why it would explained the observed results. 5 extra points for the 5 best submissions.Explanation / Answer
Most genes exist in more than one form that, when expressed, result in different characteristics. Genes may often exist in more than one form, and these forms ar termed alleles of the gene.
An allele is one if at least two alternative forms of particular gene. Alleles provide the genetic instructions for products that, although similar in type, are visibly different (phenotypically different). the term allele is derived from the greek word alleon used to describe a difference in morphology or form. at the genetic level, alleles contain differing base sequence in their nuclic acid (e.g., DNA). As a form of a gene, an allele carries the instructions for a particular variation of the gene's protein products.
Although underlying genetic molecular complexities sometimes blur the differences in expression; nature also provides simple example, a single gene may control the flower color of some plants. In such cases, one allele of the gene produces one color (e.g., orange flowers) while another allee of flower color gene may produce another color flower (e.g., yellow flower).
Alleles reside at corresponding locations on the chromosomes that consistute a chromosomal pair. Because alleles reside in specific regions of chromosomes, they ca act as makers and are subject to the laws of inheritance resulting from the apportionment of homologous chromosomes (chromosomes that match in terms of size, shape, and gene content) during meiosis. The alternative allels that comprise an organism's genome are inherited, one allwe from each parent. the allele contained on the homologous chromosome derived from the mother is termed the material allel. The allele located on the homologous chromosome derived from the father is termed the paternal allele.
All diploid organisms have two alleles at given locus on pair of homologous chromosomes. Because haploid cells (e.g., oocyte and spermatozoa in humans) contain half the chromosome compliment, such cells contain only one allele of each gene. When the diploid condition is restored following fertilization the pair of alleles can be described as homologous (alike) or heterologous (different). Accordingly, organisms that are homologous with respect to the alleles for a particular gene carry identical alleles for that gene. In contrast, organisms described as hetrozygous for a particular gene carry alleles that difer. Alleles may also be dominant or recessive with respect to their interaction and expression.
At its most basic molecular level, an allele is an ordered sequence of bases (part of nucleotides) that code for a specific genetic product (protein, enzyme, RNA molecule, etc.).
A population with stabe allele frequenciesis in genetic equilibrium. Accordingly, changes in allel frequencies ( the percentage of respective alleles in population) are characteristic indicators of evolving populations. The Hardy-Weinberg theorem states that, in the absence of selection pressures, the types and frequencies of alleles in a population remain constant. The Hardy-Weinberg equeation can be used ro mathematically predict allele frequencies.
By this i can suspect that alleles complement , come up with two true breeding variants, so by keeping cross between yellow apple and orange apples trees. we can expect 100% of progeny to have red friut. and ... 50% of the progeny shows up with red fruits, and 50% of the progeny has yellow apples.
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