Q: How can gene duplications occur?
A: An extra copy of the gene is produced in the genome of the organism by the various process is known…
Q: What happens during duplication?
A: Mutations are defined as the permanent change in the DNA’s base sequence. An agent that causes…
Q: How does gene duplication occur?
A: Gene duplication is the process occurs when an extra copy of gene is produced in the genome of the…
Q: where and when recombination occurs?
A: Recombination is the process in which DNA segments are nicked and then recombined to form new…
Q: How do you determine gene linkage?
A: Genes are the structural and functional units of heredity that carry coded genetic information in…
Q: What is mitotic recombination? A heterozygous individual (Bb)with brown eyes has one eye with a…
A: Mitosis is the process of somatic cell division. The union of the egg and sperm forms the zygote…
Q: Who is the proband in a pedigree? Is the proband always found in the last generation of the…
A: Pedigree analysis is a scientific approach that helps to study the inheritance of genes. In this…
Q: Why are the nonrecombinant offspring more common than the recombinant offspring?
A: Reproduction is a natural process in which offspring’s are produced from the parents. Reproduction…
Q: Why are specific alleles of two distant genes more likely to show recombination than those of two…
A: Recombination is a phenomenon that is seen during meiosis crossing over. Recombination is the main…
Q: In recombinant chromosomes, where is gene conversion likely totake place: near the breakpoint or far…
A: Gene conversion is a process in which a homologous sequence is replaced by the one DNA sequence in a…
Q: how Twin Spots Indicate Mosaicism Caused byMitotic Recombination?
A: Recombination is the mixing of the sequences present on the homologous chromosomes. The…
Q: What is a gene with only one common, wild-type allele?
A: The coding region of the gene is known as allele. Wild-type alleles are the original form of the…
Q: Why is random assortment of chromosomes necessary? What can we expect if this does not occur?
A: When reproductive cells mature, the Principle of Independent Assortment outlines how various genes…
Q: How can the product rule be used to predict the results of crosses in which multiple genes are…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: Why is the upper limit of recombination 50% rather than 100%?
A: The genes are the primary unit of life. The nucleotide sequence of the genes are responsible for…
Q: With regard to genotypes, what is a true-breeding organism?
A: A genotype is the genetic expression of an organism, AA, Aa, aa are examples of genotypes, 1:2:1 of…
Q: Explain why recombination events do not always result in crossing-over.
A: Genetics is the branch of biology which deals with genes, heredity, and genome in the organism.…
Q: Why would an individual with a mutation that prevented the formation of recombination nodules be…
A: The synaptonemal complex between the homologs consists of large proteinaceous complexes, which are…
Q: Why is random assortment of chromosomes necessary? What can we expect if this does not occur?
A: Gregor Mendel postulated a laws of inheritance ;which are mainly applicable to the eukaryotic…
Q: Suppose a design problem was coded with 5 genes on a single chromosome, and single-point crossover…
A: During cell division, the genetic material of the cells stored in the chromosomes aligns together.…
Q: What is a haplotype? How do different haplotypes arise?
A: A cell with one set of chromosomes is called haploid. This term can also be used to refer the number…
Q: How does the process of recombination add to the observed genetic variation of daughter cells?
A: Genetic recombination is a complicated process defined as the exchange of genetic material between…
Q: what is Unequal crossing-over between duplications ?
A: Crossing over is the process during which the non-sister chromatids of a homologous pair of…
Q: Does mitotic recombination occur in a gamete (sperm or egg cell) or in a somatic cell?
A: Cell division is typically a part of a broader cycle of cells. There are two distinct forms of cell…
Q: Explain why a 50 percent recovery of single-crossover products is the upper limit, even when…
A: Genetics is a branch of biology that deals with genes, heredity, and variation. Heredity purely…
Q: How can one construct a genetic map or determine the middle gene based on single and double…
A: A linkage map or a genetic map can be defined as a table for a particular species or experimental…
Q: what is Mitotic Recombination?
A: Mitosis is a type cell division by which the somatic cells are formed. It involves a series of steps…
Q: Why is the frequency of recombinant gametes always half the frequency of crossing over?
A: Crossing over is the way in which exchange of genes between two chromosomes, lead to non-identical…
Q: Which individuals can be termed as clones?
A: DNA is the genetic material in most living organisms. It is the information hub that contains…
Q: Explain why the percentage of recombinant offspring in a testcrossis a more accurate measure of map…
A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…
Q: What causes reciprocal translocation?
A: Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion of it…
Q: What is somatic hybridization – Explain the steps involved in the production of somatic hybrids?
A: The somatic hybridization is the process of production of somatic hybrids. It involves protoplasm…
Q: Why amorphic alleles are usually recessive to wild-type alleles?
A: Step 1 Mutation can result in mutant alleles that no longer produce a similar type of active product…
Q: Under what circumstance might two loci be on the same chromosome but behave as if independently…
A: Gene- It is a segment of DNA that is responsible for hereditary characters. It is present always in…
Q: What is nonautonomous transposition?
A: Transposition refers to the translocation in which the segment of the chromosome is relocated…
Q: What are the steps of recombination?
A: The physical crossing over during meiosis of parental heterozygous homologous chromosomes or genes…
Q: What is a clone? Why do offspring’s formed by asexual reproduction exhibitremarkable similarity?
A: Asexual reproduction involves only one parent (uniparental). In this type of reproduction the…
Q: What is the difference between recombination and crossing over?
A: The study of genetic variations, heredity, and genes is called genetics.
Q: What is the law of the superposition?
A: Answer - The law of superposition is a law of stratigraphy science
Q: What are noninformative matings. ?
A: The mating that reveals the inheritance or linkage relationships of a gene or an allele are…
Q: What are two possible explanations for why the same genotype (DNA) can result in different…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: Geneticists often carry out reciprocal crosses when they are studying the inheritance of traits. Why…
A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…
Q: Why are some crosses not performed in a complementation matrix?
A: Complementation is the capacity of 2 mutants in combination to reinstate the normal phenotype. The…
Q: So why the barr bodies cannot be seen in the experiment?
A: Each organism's DNA sequence is unique. Its base-pair sequence might vary from time to time. It is…
Q: Why is a 50 percent recovery of single-crossover products theupper limit, even when crossing over…
A: The exchange of genetic material that happens in the germline is referred to as crossing over.…
Q: How do you know if its parental or recombinant?
A: Parental and recombinant terms are used for gametes and offspring during reproduction. Offspring…
Q: What is mosaicism? How is it produced?
A: Mosaicism -No two pieces of a mosaic can be exactly same because they are made of different stones.…
What phenomenon explains why the maximum percentage of recombinant offspring does not exceed 50%?
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- Consider the genetic map below. (a) In a total of 1000 observed progeny, how many would be expected to be parental, non-recombinant? (b) If the total number of observed double-crossover recombinant progeny is 0, what is the interference? Show step by step work for full credit. A-------10cm-----B—2.5cm----CConsider the genetic map below. (a) In a total of 1000 observed progeny, how many would be expected to be parental, non-recombinant? (b) If the total number of observed double-crossover recombinant progeny is 0, what is the interference? A-------20 cm-----B—5cm----CIn letter B: If the map distance equals the number of recombinant/total of offspring, wouldn't it be 24/806 x 100? Wouldn't we add both recombinants? Can you explain letter C? I don't grasp that concept well. And since I'm using my question already, would you be able to answer D. Thank you!
- An individual is heterozygous for a reciprocal translocation, with the following chromosomes: A • B C D E F A • B C V W X R ST • U D E F R ST • U V W X Q. Explain why the fertility of this individual is likely to be less than the fertility of an individual without a translocation.In a cross between a white-eyed female (ww) and a red-eyed male (w+Y), nearly all the progeny were either red-eyed females (w+w) or white-eyed males (wY). However, about 1 in every 2000 F1 flies had an "exceptional phenotype" and was either a white-eyed female or red-eyed male. How did Bridges explain this unexpected result? A) Crossing over B) Incomplete cytokinesis C) Incorrect synapsis D) Nondisjunction E) Pseudoautosomal regionFemales from a pure-breeding curly-winged strain are mated with males from a pure-breeding straight-winged (wild-type) strain. The F1 mate with each other to produce an F2 generation that consists of 160 flies with curly wings and 80 with straight wings. What can you infer from this observation? Explain your answer and why the other options do not qualify, A) Curly wings is a recessive trait. B) The dominant curly wing allele is also a recessive lethal. C) Wing shape is controlled by two codominant alleles. D) Two interacting genes determine wing shape. E) All of the hybrid F 1 flies had straight wings.
- What is mitotic recombination? A heterozygous individual (Bb)with brown eyes has one eye with a small patch of blue. Providetwo or more explanations for how the blue patch may have occurred?Why is the upper limit of recombination 50% rather than 100%?1) Imagine you discover a new mutant strain of tailless mice. Upon looking closer, you notice that I is only the females who are tailless. In paired matings with tailless females crossed with normalmales, you find that the progeny are always recovered in the following ratios: 1/3 tailless females, 1/3 normal females, 1/3 normal males. a)What is the most likely genotype of the tailless mice? b) Provide a simple explanation for the ratio: 1/3 tailless females, 1/3 normal females, 1/3 normal males.
- What does a recombination frequency of 50% indicate? (choose one answer only) a) All of the offspring have combinations of traits that match one of the two parents. b) The genes are located on sex chromosomes. c) The two genes are likely to be located on different chromosomes. D0 Abnormal meiosis has occurred.Create a chromosome map for each set of three genes from the given information. b) the crossover frequency between gene X and gene Z is 8.5 %, the crossover frequency between gene Y and gene Z is 2.25 % and between gene Y and gene X is 6.25 %Given the distance between the orange eye color locus and the STRs, how frequent will you expect to get recombinant progeny with orange eyes? What would the probability of this marriage be producing children with orange eyes?