A woman with 47 chromosomes due to three coples of chromosome 21 is characterized by (a) superlemaloness (b) triploidy (ot Turner's syndrome (d) Down's syndrome.

Q: What is meant by the termhomologous chromosomes?

A: Chromosomes are filamentous bodies present in the nucleus. They are composed of DNA(…

Q: If a woman is a carrier of a certain x linked disease and one of her X chromosomes is turned off in…

A: As according to the above question; women is a carrier of Certain X linked disease.for example ;…

Q: How do extra sets of chromosomes or extra individualchromosomes arise?

A: Some chromosomal conditions are caused by changes within the range of chromosomes

Q: Define the important exception to the concept of homologous pairs of chromosomes ?

A: The complete set of DNA is called a genome. In prokaryotes, the genome is composed of a…

Q: An organism has a diploid number of 20 in a primary oocyte. a. How many tetrads are present in the…

A: Oogenesis is a kind of gametogenesis. It produces four haploid gametes (egg) from single parent…

Q: At which stage do homologous chromosomes separatefrom each other?

A: A set of the maternal and paternal chromosomes is collectively known as a homologous chromosome.…

Q: During oogenesis, nondisjunction of X chromosome occurred in meiosis I. If the resulting egg unites…

A: Non disjunction is the failure of chromosomes / chromatids to separate during Anaphase. In Meiosis…

Q: Humans have 46 chromosomes in each somatic cell.a. How many chromosomes does a child receive fromits…

A: Chromosomes are thread-like structures that carry genetic information. Each chromosome consists of…

Q: What are Extrachromosomal elements?

A: Chromosomes are thread-like structure, which are composed of deoxyribonucleic acid (DNA) and…

Q: How many chromosomes would an oocyte contain if during anaphase II, the chromatids of one chromosome…

A: Abnormalities in the number of chromosomes are easily identifiable from the, karyogram.  This…

Q: Chromosomal nondisjunction of the X chromosome in female gametes of humans means that live offspring…

A: Nondisjunction of  X chromosomes during meiosis I will result in four abnormal gametes. Two gametes…

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: If an organism's diploid number of chromosomes is 10 (2n = 10), how many %3D different possible…

A: The diploid is a state of the cell when the cell has two sets of similar kind of chromosomes and the…

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: 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: Although triple-X human females typically have normal offspring, what kinds of gametes, with respect…

A: Introduction In humans, the X chromosome is one of two sex chromosomes, the other is the Y…

Q: An organism has a diploid number of 16 in a primary oocyte. (a) How many tetrads are present in the…

A: Meiosis causes a reduction in chromosome number by half. It involves the recombination and pairing…

Q: Which event occurs only during prophase I of the first meiotic division?

A: A parent cell splits into two or three daughter cells in the course of cell division. Normally, cell…

Q: Can humans have 24 chromosomes?

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

Q: Assume that the diploid number of a certain species is four chromosomes, two large and two small…

A: The metaphase phase is the third phase of mitosis cell division which involves separation of…

Q: The human contains 23 pairs of homologous chromosomes, all of which are indepently assorted. What do…

A: During the process of meiosis, male and female gametes are formed. In meiosis, DNA is being…

Q: Do you know of any genetic diseases or disorders that result from errors in mitosis or meiosis? How…

A: Introduction: Mitosis and meiosis are processes and fundamental stages of cell division and cell…

Q: In experiment of Following chromosomal DNA movement through meiosis, what is the trial 1 and trial 2…

A:

Q: Dogs have 78 chromosomes in their diploid cells. If a diploid dog cell enters meiosis, how many…

A: chromosomes and chromatids will be present in each daughter cell at the end of meiosis I :

Q: How would Shugoshin does not break down after anaphase I of meiosis affect the outcome of mitosis or…

A: Shugoshin is a protein that guides the chromosome cohesion during the process of cell division.…

Q: Within the sperm and egg cells of a frog, there are 13 chromosomes.  What would be the diploid #?

A: A frog gamete has 13 chromosomes.

Q: name the Extrachromosomal elements?

A: Chromosomes are thread-like structure, which are composed of deoxyribonucleic acid (DNA) and…

Q: A cell that is 2n=40 undergoes meiosis, how many pairs of chromosom will each daughter cell have at…

A: Cell division is the process through which cells multiply in numbers. It undergoes both cytoplasmic…

Q: What happens if you have an extra chromosome 23?

A: A chromosomal disorder is an anomaly, aberration, or mutation is a missing, extra, or irregular…

Q: Nondisjunction, is when a chromosome does not separate during meiosis. When nondisjunction occurs in…

A: Cell-division is the process by which a parent cell divides and makes two or more daughter cells. It…

Q: Suppose genetic analysis reveals a serious mutation in a gene in the green region of the left-hand…

A: Chromosomes are filamentous bodies present in the nucleus. They have the ability of self-replication…

Q: Human females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With…

A: Male has two types of chromosomes are X and Y whereas females have two chromosomes both are X and…

Q: What does it mean if you have 24 chromosomes?

A: Chromosomes are a compact form of DNA wrapped around some proteins and are generally present in a…

Q: Each Chromosome Is Composed of a Single Long Molecule of ___________?

A: The chromosome is a DNA molecule that consists of hereditary information. The DNA is packed with…

Q: During embryonic development, what event causes one of the twoX chromosomes to be remain active,…

A: Introduction: X chromosome inactivation is also referred to as Lyonization and is a process in which…

Q: During meiosis in male mammals, sex chromosomes segregate to produce two types of sperm: X‑bearing…

A: In mammals sex determination is male heterogametic type in which the male produces two types of…

Q: A) At the end of meiosis I, how many chromosomes are in each cell? B) Are the cells haploid or…

A: Cell division is a biological process that results in the production of two or more daughter cells…

Q: Trisomy 21, or Down's syndrome, is the result of which event occurring during the meiotic process?

A: Ans. A nucleus, where genetic material is contained in genes, is located on every cell in the human.…

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: A dog has78 chromosomes . How many chromosomes will a cell have after it goes through mitosis? And…

A: All over the world we can see various types of organisms. All of them have originated from a single…

Q: Clark Kent and Lois Lane Kent are about to have a (Super) baby. As Superman, Clark possesses amazing…

A: In humans, the 23rd pair of chromosome is called the allosome or the sex chromosome. In males, the…

Q: The karyotype of a young girl who is affected with familialDown syndrome revealed a total of 46…

A: Translocation is the exchange of genetic material between the chromosomes and can be balanced and…

Q: Consider three pairs of homologous chromosomes with centromere labeled A/a, B/B, C/c. How many kinds…

A: Meiosis is the process in which the germ cells for sexual mode of reproduction is formed. This…

Q: What is the Y Chromosome ?

A: A chromosome is a lengthy DNA molecule that contains all or parts of an organism's genetic material.…