In a breed of cattle, rough coat is dominant over smooth coat and black coat is codominant to red. What do the following statements mean a) The loci of the two pairs of gene concerned are on the same chromosome  b) The loci of the two pairs of gene concerned are on different chromosomes

Q: Three autosomal genes are linked along the same chromosome.The distance between gene A and B is 7…

A: Genetic mapping is a method which considers the recombination frequency as a measure of distance…

Q: In Brinjal eggplants, purple fruit is incompletely dominant to white fruit, with the heterozygote…

A: When a white flowering plant is about to make a cross with a purple flowering plant, the resultant…

Q: In Drosophila flies, the allele b gives a black body, and the allele b+ gives brown, the wild-type…

A: In drosophila , There are three genes :- Black body b , waxy wings wx and cinnabar eyes cn .While ,…

Q: In a species of rat, the map unit distance between genes A, B, C and D were as follows: (in the…

A: There are 4 genes : A , B , C , D in the species of rat. Basically ,  Map unit or m.u or cM is the…

Q: Hemophilia and color blindness are both recessive conditions caused by genes on the X chromosome. To…

A: Recombination frequency is defined as the proportion of recombinant offspring produced in a genetic…

Q: In a series of two-point mapping crosses involving five genes located on chromosome II in…

A: Recombination is the mixing of the sequences present on the homologous chromosomes. The…

Q: In an autotetraploid organism, the gene controlling coat color is very near the centromere of the…

A: Autotetraploid Organisms --- Autotetraploidy -- It is defined as individual or strain whose…

Q: You are a gene hunter, trying to find the genetic basis for a rare inherited disease. Examination of…

A: It is given that the rare inherited disease is co-inherited with the markers on the chromosome 7 for…

Q: In mice, short hair is dominant over long hair. If a heterozygous shorthaired male is crossed with a…

A: A gene is the basic structural and functional unit of heredity and is made of DNA(deoxyribonucleic…

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: In a breed of cattle, rough coat is dominant over smooth, and black coat is codominant to red. What…

A: Genes are the specific codes of these amino acids which produces a protein and alleles is the…

Q: Consider Cyclic Crossover on two Parent chromosomes: Parent1 = A0846172593B and Parent2 =…

A: The child chromosome will be... chromosome no 1 is... A94B5721608A chromosome no 2 is...…

Q: Imagine the white flowers are recessive to purple flowers, and yellow seeds are recessive to green…

A: A mating between two animals that are perfectly hybrid for two features is referred to as a dihybrid…

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: For a certain gene in a diploid organism, eight units ofprotein product are needed for normal…

A: a.  We cannot expect the mutation to be recessive,it may rather be dominant.This is an example of a…

Q: What is the chromosome number of the individual? Based from the karyotype, identify the name of the…

A: Chromosome is a thread like structure which is formed by DNA and is present in the Nucleous of the…

Q: Given parental genotype aBc/abC, which of the following gametes is/are recombinant?  Choose all that…

A: Recombination event occurs during the prophase-l of meiosis-l. Meiosis is a cell division process by…

Q: Which of the karyotypes shown is from a normal female?

A: A karyotype represents all the 23 pairs of chromosomes in a picturized form. It provides information…

Q: Certain varieties of chrysanthemums contain 18, 36, 54, 72, and 90 chromosomes; all are multiples of…

A: The chromosome is the package of densely packed chromatin fibers with DNA and histone proteins. In…

Q: In your own words, explain why a testcross cannot produce more than 50% recombinant offspring. When…

A: The external appearance of an individual for any trait is called phenotype for that trait. For…

Q: Is it possible to cross two different pure-breeding yellow zucchini strains and obtain all green…

A: Genetics is a branch of the biology involved in the study of genes, genetic variation, and heredity…

Q: In a breed of cattle, rough coat is dominant over smooth coat and black coat is codominant to red.…

A: Crossing over is the exchange of chromosome segments during cell division such that many new…

Q: In flies, long wings are a dominant trait, and short wings are a recessive trait. Medium wings are…

A: Homozygous individuals mean there is a pairing of the two same types of alleles and both of the…

Q: What is the genotype of the F1 generation of the corn monohybrid cross described above? What is the…

A: When we cross pure purple kernel (RR) with pure yellow kernels (rr),    Parents genotypes      RR…

Q: In flies, assume black (B) is dominant and green (b) is recessive for abdomen color, and straight…

A: A genetic map displays the map distance (in cM) between any two loci as well as the position of…

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: If two loci are 10 cM apart, what proportion of the cells in prophase of the first meiotic division…

A: * Given that two loci are 10cM apart (centimorgan) *Have to calculate the proportion of cells in…

Q: An individual has the following reciprocal translocation:What would be the outcome of alternate…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

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: 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: 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: When two genes are located on the same chromosome,what is the physical basis for the production of…

A: Genetics is the branch of biology that deals with inheritance and variation. A gene is a section of…

Q: If an individual possesses a normal chromosome of the sequence ABCODEFG and an inversion of…

A: There are two chromosomes the first one has a gene sequence as follows A-B-C-©-D-E-F-G and another…

Q: What is the definition of a map unit?   A. The frequency of recombination between two or more…

A: Genetics is the branch of biology that deals with the study of genes which involves processes like…

Q: The loci of the two pair of genes concerned are on the same pair of chromosomes (assuming no…

A: Crossing over is the exchange of chromosome segments during cell division such that many new…

Q: Which of the karyotypes shown is from a normal female?

A: Karyotyping is the process of taking micro pictures of human chromosomes to understand their nature…

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: In Drosophila flies, the allele b gives a black body, and the allele b+ gives brown, the wild-type…

A: Genes are the hereditary units of life. The genes can be linked or may not be linked.  When two…

Q: Explain the following

A: Gametogenesis is the method leading to the formation of the female and male germs cells. The…

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 ABO blood type locus has been mapped on chromosome 9. A father with blood genotype BO blood and…

A: The presence or absence of the antigens A and B, which are borne on the surface of red blood cells,…

Q: An individual that is heterozygous for an inversion has the following chromosomes (∗ is the…

A: Introduction :-  Crossing over is defined as the exchange of segments ( chromosomal segments)…

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: In fruit flies, Cinnabar eyes are encoded by a recessive allele located on the X chromosome. If a…

A: An allele may be defined as different forms of the same gene. The dominant allele is the one that…

Q: Change in chromosome numbers will lead to abnormalities. Which of the following is a correct match…

A: Introduction A karyotype is a preparation of the entire set of metaphase chromosomes in the cells of…

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 .

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.