In a species of rat, the map unit distance between genes A, B, C and D were as follows: (in the picture) (a) What is the order of these genes on the chromosome?  (b) What is the map unit distance between B and D?

Q: One of the X chromosomes in a particular Drosophila female had a normal order of genes but carried…

A: Crossing over: It occurs during prophase I and involves the exchange of genetic material between…

Q: A geneticist examines an ear of corn in which most kernels are yellow, but he finds a few kernels…

A: The anthocyanin pigment produced by corn is responsible for its peculiar purple colour. This happens…

Q: What is the difference in meaning between the terms geneticrecombination and crossing over?

A: Genetics is the branch of biology which deals with genes, heredity, and genome in the organism.…

Q: In humans, chromosome 16 sometimes has a heavily stained area near the centromere. This feature can…

A: So, non disjunction of the chromosomes occurs in the condition when the homologous chromosomes fail…

Q: The alleles his-5 and lys-1, found in yeast, result in cells that require histidine and lysine for…

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

Q: What is pseudoagouti (highly methylated) phenotype ?

A: Phenotype generally refers to the observable characteristics of an organism. It is generally…

Q: How is FISH used to characterize chromosomal translocations associated with certain genetic…

A: FISH or Fluorescence in situ hybridization is a technique used widely in molecular cytogenetics to…

Q: With regard to the segregation of centromeres, why is adjacent-2segregation less frequent than…

A: A specialized DNA sequence of a chromosome which links the two sister chromatids is known as a…

Q: Below is a pedigree from one family (two parents and eight children). Four of the children…

A: Pedigree chart It is a diagram that represents the occurrence of phenotypes of a particular gene in…

Q: You have identified a gene that is located on human chromosome 20 and wish to identify its location…

A: Comparative genomics is the comparisons made between genomic features of different organisms for…

Q: What is a gene family? How are gene families produced over time?With regard to gene function, what…

A: Gene is known to be a hereditary unit. They are composed of DNA or deoxyribonucleic acid and some of…

Q: In general, why do changes in chromosome structure or numbertend to affect an individual’s…

A: Chromosome is a compact structure of a DNA molecule wrapped around some proteins. It is generally…

Q: Fetuses whose cells are triploid, that is, contain three full sets of chromosomes, develop to term…

A: INTRODUCTION The DNA molecule is packed into thread-like structures called chromosomes in the…

Q: In a two factor cross, the longest possible map distance is 50 map units.  Explain why this is…

A: By finding the recombination frequencies of many gene pairs, we can make genetic or linkage maps. By…

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: In a series of two-point map crosses involving five genes locatedon chromosome II in Drosophila, the…

A: There are five genes in Drosophila's chromosome II and the crosses yield offspring with different…

Q: What functions do the two centromere-associatedcomplexes, cohesin and the kinetochore, play…

A: Chromosomes are the condensed form of DNA that are formed by the condensation of chromatin material…

Q: The genes dumpy wings (dp), clot eyes (cl), and apterous wings (ap) are linked on chromosome II of…

A: The process of establishing or identifying the position of the genes on the genome is termed genome…

Q: The numbers of chromosomes in the somatic cells of several oat varieties are sand oats: 14; slender…

A: Answer. Oats are Avena plant species and belong to the grass family. a). The basic chromosome number…

Q: Approximately how many copies of chromosome 2 are found in a polytene chromosome in Drosophila?

A: Polytene chromosomes are special type of chromosomes, which have thousands of DNA strands. They…

Q: You design Drosophila crosses to provide recombinationdata for gene a, which is located on the…

A: The drosophila is commonly called fruit fly, and it is commonly used for the study of genetics. The…

Q: One of the X chromosomes in a particular Drosophila female had a normal order of genes but carried…

A: To determine : a. Why are there no male offspring with the allele combinations y v f+, v+ v+ f, y v+…

Q: This is a diagram of chromosome 17. What is the cytogenetic coordinates of a gene at the indicated…

A: Here, Cytogenetic coordinate of a gene means the position of a gene on a chromosome. A chromosome…

Q: Here are the results of the testcross: Green-eyes, wild-type wings 245 Green-eyes, miniature wings…

A: 6) The number of flies with green eyes and and miniature wings are 232, these organisms are least in…

Q: . In a diploid organism of 2n = 10, assume that you canlabel all the centromeres derived from its…

A: The formula that is used for the solution of this problem is 2n. Here, n stands for the different…

Q: From a cross between e+ f+ g+ and e− f − g− strains ofNeurospora, recombination between these…

A: Hi there! Since you have posted multiple questions, we are answering only first two sub-parts.…

Q: If 2 genes on the same chromosome have a recombination frequency of .01, what is the genetic…

A: Genetics is a part of science worried about the investigation of genes, genetic variety, and…

Q: In autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very…

A: Distance between the two genes indicates the genetic linkage between the two genes. Distance between…

Q: Can you explain genetic map with two point cross? And show me a example with the cross

A: Genetic map use to create by using information obtain through series of test cross. A cross between…

Q: The genes dumpy wings (dp), clot eyes (cl), and apterous wings(ap) are linked on chromosome II of…

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

Q: For the following chromosome complements, what is the phenotypic sex of a person who has Q. XXY with…

A: A gene is a unit of genetic material present within the DNA (deoxyribonucleic acid). Each gene…

Q: What is the approximate size of chromosome 7 inMb?

A: Chromosomes are thread-like structures that are located in the nucleus. It is composed of protein…

Q: Let’s say there is an organism with two pairs of alleles, W/w and Z/z, each pair is located on a…

A: Cell division is a phenomenon takes place inside the cell during which parent cell undergo…

Q: The following corn loci are on one arm of chromosome9 in the order indicated (the distances between…

A: Introduction A phenotype is a set of observable characteristics about an individual, such as height,…

Q: Why is chromosome 21 the smallest and not chromosome 22? considering that a karyogram is arranged…

A: Introduction: In the nucleus of each cell, the DNA molecule is bundled into thread-like structures…

Q: What is the approximate location of the centromereon human chromosome 7?

A: The centromere connects the sister chromatids with each other.

Q: In a diploid organism of 2n=10, assume that you can label all the centromeres derived from its…

A: Meiosis creates gametes such as egg and sperm cells. During meiosis, the genetic information is…

Q: For the following chromosome complements, what is the phenotypic sex of a person who has Q. XY with…

A: The male sex-determining gene in humans is termed as the sex determining region Y (SRY) gene.…

Q: The genes dumpy wings (dp), clot eyes (cl), and apterous wings (ap) are linked on chromosome II of…

A: A genetic map is a type of chromosome map that shows the relative locations of genes and other…

Q: In Drosophila, the genes for withered wings (whd), smooth abdomen (sm) and speck body (sp) are…

A: To calculate the expected number of double crossover, we have to use the product rule. The product…

Q: Is this karyotype a male or female? Which chromosome is the longest and has the most genes?  Which…

A: Introduction Chromosomal studies, also known as karyotyping, is a test that assesses a person's…

Q: The genes that codes for the creation of certain blood groups are located on chromosome "XGp22.3",…

A: *Chromosomes can be found in nucleus which are thread like structures located present in both…

Q: The genes for mahogany eyes and ebony body are approximately 18 map units apart on chromosome III in…

A: In Drosophila + indicates wild-type allele for any gene, m = mahogany  e = ebony.Female parents are…

Q: What is a balanced chromosomal rearrangement?

A: Chromosomes carry the genetic material DNA. Chromosomes may undergo rearrangements that are the…

Q: In autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very…

A: Autotetraploid are the complex chromosome that form of four copies of single genome .

Genome annotation

The technique of linking biological information to genome sequences is termed genome annotation. Gene annotation is the method of identifying gene locations and coding sections. It helps us understand what these genes are doing in the body through establishing structural characteristics and linking them to the actions of various proteins.