Why do you think that humans with trisomy chromosome 13, 18,or 21 can survive but other trisomies are lethal? Even though Xchromosomes are large, aneuploidy of this chromosome is alsotolerated. Explain why.

Q: Individuals with trisomy 21 are more likely to survive to adulthood than individuals with trisomy…

A: Trisomy is the presence of three copies a chromosome, rather than two.

Q: Chimpanzees, gorillas, and orangutans all have 48 chromosomes, whereas humans have 46. Human…

A: When a part of a chromosome breaks off and gets translocated to another chromosome, leading to…

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

A: Somatic cells also are known as vegetal cells have two sets of chromosomes and are thus considered…

Q: Individuals with trisomy 21 are more likely to surviveto adulthood than individuals with trisomy 18.…

A: Polyploidy is a numerical abnormality which consists of more than two pairs of chromosomes. It is…

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: If a chimpanzee has a haploid (N) chromosome number of 24, how many chromosomes will be found in…

A: A chimpanzee has 24 pairs of chromosomes in diploid condition and haploid cells such as gametes…

Q: I. Give the chromosome number and chromosome configuration if the following mutations occurred in…

A: As per the guidelines, we are supposed to answer only three sub-parts. Kindly repost the question…

Q: If the original parental cell had 12 pairs of homologous chromosomes, how many chromosomes would be…

A: Numerous physiological operations happen simultaneously in a biological cell. The sequential…

Q: . In yellow fever mosquitos (Aedes aegypti) 2n=6. In a mosquito cell that is going through mitosis,…

A: Meiosis is the cell division process that results in the formation of egg and sperm cells. Mitosis…

Q: What is the probability that, in an organism with a haploid number of 10, a sperm will be formed…

A: Meiosis is a type of cell division where four gametes or daughter cells are produced as a result of…

Q: Why are there no humans with monosomy 22? because chromosome 22 is very small, it is very stable and…

A: The correct option is shown below.

Q: A group of naturally occurring diploids of a species has 50 pairs of chromosomes. how many…

A: Mitosis  It is the division of chromosomes in a cell  Usually followed by cytokinesis or cell…

Q: In a cell where 2n=20, nondisjunction of two pairs of chromosomes will results into what types of…

A: * Meiosis is the process in which haploid gametes fuse and from a diploid cell.  *chromosomes do not…

Q: Given the end results of the two types of division, why is it necessary for homologs to pair during…

A: Cell cycle is a series of changes that occurs in a newly divided cell through which it duplicates…

Q: At the end of Meiosis II in human cells (specifically in males, for example), how many gametes are…

A: In a normal cell there are 46 chromosomes that is 23 pairs of chromosomes are there out of which one…

Q: The genes that codes for the creation of certain blood groups are located on chromo- some "Xp22.3",…

A: Blood Inheritance Our blood type, like our eye or hair colour, is inherited from our parents. Each…

Q: Two phenotypically normal parents produce a phenotypicallyabnormal child in which chromosome 5 is…

A: The thread-like structure present inside the nucleus is called a chromosome. The chromosome is…

Q: A heterozygous diploid yeast Aa Bb went through meiosis. What percentage of the haploid spores will…

A: Recombination is defined as the process or method by which the DNA pieces are broken down and are…

Q: A man who is a carrier of a translocated 15/21 chromosome marries a genotypically normal woman.…

A: Synapsis  It is the pairing of two homologous chromosomes during early stage of meiosis.

Q: Where are chromosomal fragments of non sister homologs exchanged and remain as part of the process…

A: Crossing over happens all the time in  prophase I (Meiosis)  before formation of tetrads area unit…

Q: If a gamete of an unknown animal species has 18 chromosomes, how many chromatids are at anaphase I?…

A: Introduction: Chromosomes are the condensed form of chromatin present in the nucleus of the cells.…

Q: A man who is a carrier of a translocated 15/21 chromosome marries a genotypically normal woman. a.…

A: The condition is termed Robertsonian translocation.  Explanation: Every individual has his / her…

Q: In a species with 2N of 10, how many chromosomes are in a autotriploid?

A: *Polyploidy: Having multiple sets of chromosomes Ex. Triploid 3n , tetraploid 4n *Autotriploidy ( 3n…

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: The kidney bean plant, Phaseolus vulgaris, is a diploid speciescontaining a total of 22 chromosomes…

A: Polyploidy is a numerical abnormality which consists of more than two pair of chromosomes. It is…

Q: crossing over within a pericentric inversion produces chromosomes that have extra copies of some…

A: Chromosomes having extra copies or no copies of genes are produced by crossing over within a…

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: . When a cell of genotype A/a ; B/b ; C/c having all thegenes on separate chromosome pairs divides…

A: In the process of mitosis, the daughter cells that are produced will have the same genotype.

Q: A cytogeneticist has collected tissue samples from members of acertain butterfly species. Some of…

A: In the question, there are two groups of butterflies given: the Canadian and Mexican and they were…

Q: Given the end results of the two types of cell division, why is it necessary for homologs to pair…

A: Meiosis is the process by which gametes are produced. This is beneficial to recover the mixture of…

Q: In a human genetic study, a family with five phenotypicallynormal children was investigated. Two…

A: Introduction: The compact form of DNA is known as chromosomes.

Q: How mang sister chromatids are found in a single human cell undergoing Prophase II of Meiosis?

A: Meiosis is a reduction division. Number of chromosomes gets reduced by half in daughter cells.…

Q: half the chromosomes of a human primary oocyte segregate into the first polar body, which…

A: The process of formation of gametes is different in males and females. In males, it is known as…

Q: With two pairs of homologous chromosomes, four kinds of gametes can be produced. How many kinds of…

A: Gametes are formed by the process of meiosis in the gamete mother cells.

Q: How many chromatids are present for each type of chromosome at the completion of crossing over? What…

A: Crossing over is the process in genetics by which the two chromosomes of a homologous pair exchange…

Q: Name the disorder with choromosome compliment 22 pairs of autosomes +21st chromosomes +XY?

A: Normally every human cell contains 23 pairs of chromosomes i.e. 46 chromosomes but sometimes, some…

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: An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B •…

A: Translocation is caused Due to separation of a chromosome segment and its union to a non-homologous…

Q: A prairie grass species called "little bluestem" is tetraploid. It has four complete sets of…

A: Meiosis is a type of cell division where a single cell divides twice to produce four cells…

Q: Arabidopsis thaliana, a small flowering plant, has a chromosome number of 2n=10. Show the changes in…

A: The DNA is highly condensed to form a chromosome. Each species have a specific number of chromosomes…

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: there are 9 chromosome pairs, how many univalents are there at anaphase I on each pole?

A: Anaohase 1 is the  stage of meiotic first division in which the paired chromosome separates and move…

Q: What would be the consequences to the outcome of meiosis if SPO11 is absent? Explain your reason.

A: Meiosis is a type of cell division that produces four gamete cells by halving the number of…

Q: A diploid organism has a total of 14 chromosomes and about20,000 genes per haploid genome.…

A: Genetic linkage refers to the close association of genes chromosome that are located close to each…

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…

Q: From 2 to 6 percent of people with autism have an extra chromosome that consists of two long arms of…

A: Isodicentric 15 It is also called idic15 and inverted duplication 15. It is an chromosome…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.