What is a sex pilus and which cell type, F- or F+,would produce this structure?

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

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

Q: What are telophase 1?

A: Meiosis can be divided into two divisions as a) Meiosis I b) Meiosis II.  As mitosis, the cell is…

Q: What is the chromosome number of the cell shown in the figure?

A: Chromosome contains two chromatin fibers/chromatids.

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: What does the sex chromosome genotype OY produce in drosophilia?

A: Drosophila melanogaster is a fly species that belong to order Diptera. This is also known as fruit…

Q: Why are triploid plants infertile?

A: The plants with three sets of chromosomes called triploid (3n) plants. These plants morphologically…

Q: What causes the cleavage furrow to ingress?

A: causes was;

Q: What is the function of the fused kinetochore found on sister chromatids in prometaphase?

A: In prometaphase I of Meiosis I, the critical event is the attachment of the spindle fibre…

Q: Which is the type ofgamete produced by aheterozygous individual?What is the genotypicalproportion of…

A: Alleles are the two-contrasting form of genes. They are pairs of genes on a chromosome that…

Q: Which of the following is an accurate model and description of anaphase II in Cape parrots?

A: As per the Karyotype of the somatic cells from the cape parrots obtained, they have total 29 pair of…

Q: What is a sister chromatid

A: Chromosome is the compact form of DNA which is composed of both proteins and DNA. In chromosomes,…

Q: What does the sex chromosome genotype XO produce in drosophilia?

A: In Drosophila, XO type of sex determination will be seen in which males have only one type of X…

Q: What does the sex chromosome genotype XX produce in drosophilia?

A: Drosophila exhibits the same type of sex type of sex determination as in humans. X and Y chromosomes…

Q: What are sister chromatids? What is the process that forms two sister chromatids from a single…

A: DNA is the store house of genetic information. This genetic information is decoded through the…

Q: How many total sister chromatids are present in this cell?

A: Crossing over is defined as a process where the homologous pair of chromosomes exchange the segment…

Q: How many nonsister chromatids are in a chromosome?

A: Chromosomes are carrier of deoxyribonucleic acid (DNA). DNA is the genetic material. Chromatid…

Q: What would the consequences be if one set of sister chromatids failed to separate at anaphase?

A: As we know all living organisms are made of  basic unit of structure and function called as cell. To…

Q: How is the Barr body different from the other Xchromosome in this cell?

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

Q: In a plant which is 2n=24, what is the total number of CHROMATIDS present during prophase I of…

A: The diploid chromosome number is the number of chromosomes inside a cell's core. This number is…

Q: Why is the difference in cohesin cleavage in mitosis and meiosis important for proper segregation in…

A: Two types of cell division is seen in sexually reproducing organisms. They are mitosis and meiosis.…

Q: How does shugoshin affect sister chromatids in meiosis I and meiosis II?

A: Shugoshin helps in cohesion of chromosomes during cell division In meosis I shugoshin  protects the…

Q: What is a Barr body, and where is it found in a cell?

A: A chromosome is a long DNA molecule with part or the whole hereditary material of a creature. Most…

Q: If there are 32 sister chromatieds in a normal somatic cell, what is the haploid number for that…

A: Chromosome are the string like structure that comprises of DNA , histone proteins as well as…

Q: What DNA sequence feature is required for a G-quadruplex to form?

A: G-quadruplex formed are formed in telomeric sequences which are highly polymorphic. A four repeat…

Q: What is the correct number of chromosomes present in each cell at Division 1 in this diagram?

A: In sexual reproduction, formation of gametes in involved. This occurs by the mode of cell division…

Q: Where do centromeres dissolve in meiosis?

A: Meiosis is a kind of cell division occurring in the germ cells of the body that gives rise to four…

Q: Name the chromosomes that appear thread like.

A: The chromosome is the deoxyribonucleic acid or DNA which is the genetic material of an organism. The…

Q: What is a merodiploid, and what is genetic complementation?

A: The genome of an organism is defined as the whole heredity information encoded in the genetic…

Q: Given the diploid chromosome number highlighted above, what is the haploid chromosome number?

A: Cell division is the process of division of cell which occurs by two process - Mitosis Meiosis…

Q: What does the sex chromosome genotype XYY produce in drosophilia?

A: Drosophila melanogaster is commonly known as fruit fly. It belongs to the kingdom Animalia, phylum…

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: Which of the phases of XCI occurs in anadult female?

A: X chromosome inactivation is a gene silencing program on one of the X chromosomes in females. This…

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: is the same chrosome type of the parent and daughter cells after mitosis an indication that they are…

A: Cell division It is the process through which new cells are produced. It involves two different…

Q: What is the inactivation of the X chromosome? What is a Barr body?

A: It is believed that women are more susceptible to X chromosome inactivation than men are. X…

Q: hat cytological abnormalities are expected of aneuploids at mitosis? at meiosis?

A: cervical cytologic abnormalities in teenagers, outlined as a Papanicolaou (Pap) smear result…

Q: What does the sex chromosome genotype XY produce in drosophilia?

A: Sex chromosomes, i.e., X and Y chromosome in an organism, determines the biological sex of an…

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: What is mitotic nondisjunction?

A: A cell is a basic membrane-bound unit and it is often called the basic building blocks of all living…

Q: What process occurs when genes swap position on a chromosome during meiosis, as in the case of Cru…

A: Meiosis is a cellular process where a single cell divides two times to produce four cells containing…

Q: What does the sex chromosome genotype XXY produce in drosophilia?

A: The sex chromosomes are responsible for determining the sex of an organism.  In humans and…

Q: Why is the Barr body more brightly staining in a cellnucleus than the other chromosomes?

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: How many Barr bodies would you expect to see in a human cell containing the following chromosomes?…

A: Barr bodies are inactive, condensed X chromosomes in a cell with more than one X chromosome. Barr…

Q: What does the sex chromosome genotype XXX produce in drosophilia?

A: Sex determination in Drosophila is achieved by a balance of female determinants on the X chromosome…

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: What is the name of the structure that holds homologous chromosomes together after they have paired…

A: A chromosome is a compact form of DNA  molecule present in dividing cells. In metabolically active…

Q: What is the purpose of Barr bodies?

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

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.