Sister chromatids are 100% identical to each other unless they have undergone a recombination event with the homologous chromosome.

Q: Common red clover, Trifolium pratense, is a diploidwith 14 chromosomes per somatic cell. What…

A: Ploidy is the change in the number of chromosomes among organisms. It can be distinguished into two…

Q: For a hexaploid what is the value of x where x refers to the basic chromosomenumber that makes up a…

A: Ploidy refers to the number of chromosomes present in the nucleus of a cell. In normal somatic…

Q: Identify the parts (A, B, C, D) of the chromosome below. B A

A: Answer: A = Chromatids  B = Centromere C = Kinetochore  D = Kinetochore microtubules  It is the…

Q: An inversion heterozygote has the following inversion chromosome:     What would be the products if…

A: Chromosomal inversion is a type of mutation where the segment of chromosomes undergoes breakage and…

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: Mitosis is a type of cell division that occurs in all the cells except sex cells. Here the…

Q: A diploid organism is heterozygous for 4loci,how many types of gamete can be produced?

A: 'Locus' is a term which is used to denote the fixed position of a gene on the chromosome. A gene…

Q: . All the genes on one chromosome are said to form aa. chromosomal group.b. recombination group.c.…

A: All the genes on one chromosome are linked together on a continuous DNA (deoxyribonucleic acid)…

Q: Referring to Figure 17-19, draw a diagram showing the process whereby an inversion formed from…

A: An inversion is a type of chromosomal rearrangement in which a chromosomal segment is reversed end…

Q: Here is a situation in which there is a repeated sequence. This picture shows two homologous…

A: Chromosomal crossover explains the exchange of genetic material while sexual reproduction between…

Q: What unusual feature of the Y chromosome allows some recombination among the genes found on it?

A: Every individual has 23 pairs of chromosomes, out of which 22 are identical, one ie sex chromosome…

Q: In a sample of 1000 patients with Down syndrome, a geneticist discovers that 95% of them are…

A: Trisomy is a kind of polysomy in which three instances of a particular chromosome occurs. Generally…

Q: The following diagram represents two nonhomologous chromosomes: A B • C D E F G R S • T U V W X What…

A: There are four types of chromosomal mutations: deletion, duplication, inversion and translocation.…

Q: 2. Generate the two resulting recombinant chromatids that result from the crossover events that must…

A: DNA is the store house of genetic material. The filamentous DNA condensed to form chromatids, which…

Q: A crossover has occurred in the bivalent shown figure.If a second crossover occurs in the same…

A: Crossing over is the exchange of chromosome DNA segments between non-sister chromatids which takes…

Q: A human female with Turner syndrome (45,X) also expresses the X-linked trait hemophilia, as did her…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: What type of chromosome or fragment cannot be formed by the following chromosome inversion…

A: An inversion is a chromosome rearrangement in which a segment of chromosome is reversed end-to-end.…

Q: Sex linkage refers to genes which are linked to each other on the sex (X or Z) chromosomes.

A: The chromosomes that are present in the diploid cells of the sexually reproducing animals are…

Q: If a fragment of a chromosome breaks off and then reattaches to the original chromosome but in the…

A: Translocation means a change in location. It generally refers to genetics when part of a chromosome…

Q: The crossing over process occurs during meiosis II, which is an exchange of chromosome segments…

A: Meiosis l is reductional division whereas meiosis ll is equational division.Meiosis leads to the…

Q: A couple planning their family are aware that through the past three generations on the husband’s…

A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…

Q: Consider an organism of karyotype 2n = 4. Which diagram properly depicts metaphase I?

A: In metaphase I the tightly coiled and condensed pairs of the chromosome will be arranged as homologs…

Q: A chromosome with the following gene order has a paracentric inversion of BCDE. A B C D E F • G H If…

A:

Q: Draw a pair of chromosomes as they would appear during synapsis in prophase I of meiosis in an…

A: In chromosomal duplication, some of the part of chromosome has been doubled up. In duplication, the…

Q: why The chromatids formedby recombination within the inversion loop of a paracentric…

A: When the region between two breaks of the same chromosome rotates 180°, it results in chromosomal…

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: Refer to the figure showing a pair of homologous chromosomes. What process is demonstrated in this…

A: Introduction Meiosis is a type of cell division that occurs in sexually reproducing organisms' germ…

Q: The somatic cells of a given species contain 14 pairs of chromosomes. If a gamete receives one…

A: Somatic cells contain 2n number of chromosomes (diploid) and gametes contain n number of chromosomes…

Q: When 23 pairs of human chromosomes are arranged in a diploid set, this layout  is called a

A: A chromosome is a long DNA molecule with part or the entirety of the hereditary material of a…

Q: Explain how mitotic recombination leads to the mosaiccondition termed twin spots.

A: Mitotic recombination is a kind of genetic recombination takes places in somatic cells at a time of…

Q: The two forms of recombination are general and _____________.

A: Recombination is the process of the formation of new DNA molecules from two parental DNA molecules.…

Q: A monosomic G. hirsutum is crossed with G. thurberi and produces offspring, some with 39 chromosomes…

A: Normal G. hirsutum is tetraploid. It has 13 tetraploid (4x) chromosomes and thereby have a total of…

Q: Given the following frequency, what is the sequence of the chromosome map? D-A: 6%; D-E: 12%; V-E:…

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

Q: What is the advantage of genetic recombination, which is depicted in part (b)?

A: Crossing over or recombination occurs as a result of interchange of corresponding parts between the…

Q: What are chromosomal islands? Why are theyconsidered to be of foreign origin?

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

Q: If 2 genes are in linkage what set the percentage of recombination gametes

A: When genes are close together on the same chromosome, they are said to be linked. We can see if two…

Q: A couple planning their family are aware that through the past three generations on the husband's…

A: a. Inversions are quite uncommon, thus little is understood about how they affect phenotype and…

Q: Normal mitosis takes place in a diploid cell of genotypeA/a ; B/b. Which of the following genotypes…

A: The correct answer of the given option is f.

Q: Two loci exhibit 5% recombination between them. How many map units apart are they?

A: Genetics is a branch of science concerned with the study of genes, genetic variation, and heredity…

Q: The following diagram represents two nonhomologous chromosomes: A B • C D E F G R S • T U V W X What…

A: A mutation is an alteration or a change in the nucleotide sequence of DNA or RNA. Genetic…

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: Eukaryotic chromosomes are made up of chromatin fibers that are combination of DNA and proteins.…

A: In the eukaryotes, there are different organelles present. Each organelle is specialized to carry…

Q: Alterations of chromosome structure can not be resulted from: اختر احدى الاجابات Translocation…

A: Mutations are  errors occur during DNA synthesis . These errors can be adventageus or dangerous ..…

Q: Given the following frequency, what is the sequence of the chromosome map? A-G: 18%; R-G: 3%; A-K:…

A: Higher frequency percentage indicates the closeness of the genes.

Q: 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ху Which chromosome set has an extra What…

A: The first set has an extra chromosome. The patient suffers from aneuploidy. As the genome contains…

Q: a homologous pair of chromosomes always has two sister chromatids each? true or false?

A: Chromosomes are compact form of DNA in which DNA is wrapped around histone proteins. These are…

Q: Common red clover, Trifolium pratense, is a diploidwith 14 chromosomes per somatic cell. What…

A: Trifolium pratense is the herbaceous species of the flowering plant. It belongs to the bean family…

Q: Chromosomes in pair 23 are considered what type of chromosome

A: Karyotype is the pictorial representation of the chromosome pairs of an individual. It is a…

Q: An individual is heterozygous for a reciprocal translocation, with the following chromosomes: A • B…

A: Translocation in chromosomes refers to the abnormal chromosomal rearrangement. It could be a…

Q: In Figure 17-28, what would be the consequence of acrossover between the centromere and locus A?

A: The exchange of chromosomal segments between nonsister chromatids in meiosis is known as crossing…

Genetic Recombination

Recombination is crucial to this process because it allows genes to be reassorted into diverse combinations. Genetic recombination is the process of combining genetic components from two different origins into a single unit. In prokaryotes, genetic recombination takes place by the unilateral transfer of deoxyribonucleic acid. It includes transduction, transformation, and conjugation. The genetic exchange occurring between homologous deoxyribonucleic acid sequences (DNA) from two different sources is termed general recombination. For this to happen, an identical sequence of the two recombining molecules is required. The process of genetic exchange which occurs in eukaryotes during sexual reproduction such as meiosis is an example of this type of genetic recombination.

Microbial Genetics

Genes are the functional units of heredity. They transfer characteristic information from parents to the offspring.