Q: Explain why a triploid individual is usually infertile?
A: The individual having three sets of haploid chromosomes (3n) is termed as triploid. Triploid…
Q: What pccurs in meiosis during telophase?
A: Meiosis is a process where a single cell divides twice to produce four cells containing half 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: Concerning the sexchromosomes of the XYsystem which type of gametedo the male and the…
A: Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each…
Q: A diploid organism is heterozygous for 4 loci, how many types of gametescan be produced?
A: Loci refer to the fixed position on a chromosome. Heterozygous organisms have different alleles for…
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: Explain the term polyembryony. How is it exploited commercially?
A: The embryo is the multicellular organisms’ early stage. The development of the embryo is the cell…
Q: What is the difference between the X-Y and X-0 systems of sex determination?
A: The biological system that is known to determine the development of sexual characteristics is known…
Q: What is aneuploidy screening test?
A: ANEUPLOIDY means an organism does not have the normal number of chromosomes. If there is 1 less…
Q: What is aprosodia?
A: Aprosodia is a neurodisorder. Aprosodia means without prosody. Prosody is a linguistic term which…
Q: What would be the genotype of the P Generation?
A: Introduction: Genetics is a branch of biology that deals with the understanding of genes, variation…
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: Why is the Barr body more brightly stained by DNA-specific dye in a cell nucleus?
A: Introduction: Barr body is the inactivated X chromosome found in the cells containing more than one…
Q: On rare occasions, a human male is born who is somewhat feminizedcompared with other males.…
A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…
Q: Explain why autopolyploids are usually sterile, whereas allopolyploidsare often fertile.
A: Polyploidy refers to the presence of more than two complete sets of chromosomes in the nucleus of…
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: Explain the mechanism and types of the cleavage.
A: Cleavage in developmental biology refers to the cell division occurring in the early stages of the…
Q: How does non-disjunction in meiosis lead to numerical chromosomal aberration?
A: Chromosome is the rod shaped, dark stained bodies which are most prominently seen in the metaphase…
Q: What can be concluded about the severity of nondisjunction that occurs in meiosis I as opposed to…
A: Nondisjunction is the condition where the sister chromosomes fail to separate properly during cell…
Q: What are the advantages and disadvantages of the alternation between fertilization and meiosis in…
A: The fusion of female gamete (egg cell) and male gamete (sperm) is termed as fertilization.
Q: What is reproductiveisolation?
A: Genetics is the branch of biology that deals with the study of genes, their inheritance patterns,…
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: How many stahes of cleavage are there in sea urchin? Explain.
A: Cleavage is the division of cells in early embryonic development.
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: 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 is an allodiploid? What factor determines the fertility of anallodiploid? Why are…
A: Reproduction is the process of the formation of new offspring. The ability of an individual to…
Q: What is double fertilizaton?
A: Angiosperms are flowering plants and also considered as a diverse group of terrestrial plants.
Q: Illustration of stages in Meiosis 2 with 10 chromosomes, explain briefly
A: Meiosis is a type of cell division that occurs in sex cells at the time of gamete formation. It…
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: An organism has a diploid number of 16 in a primaryoocyte. How many monads migrate to each pole…
A: The cell division in which the parent cell divides twice to generate four daughter cells, is termed…
Q: What is chromosomal mapping?
A: A chromosome contains all of the genetic material of an organism. Almost all the eukaryotic…
Q: whar are the meiotic events that could lead to the birth of an individual with either Patau syndrome…
A: The meiotic events causing Patau syndrome, or Turner syndrome in an individual. Introduction: Patau…
Q: ain the term is Euploidy?
A: Almost every cell in our body has twenty-three pairs of chromosomes, for a complete of forty-six…
Q: Why does aneuploidy increase with maternal age?
A: A normal human cell has 46 chromosomes. Aneuploidy is a condition when a human cell has an abnormal…
Q: How many polar bodies will be produced by 32 primary oocytes considering that their meiosis II is…
A: Gametogenesis is the process of formation of haploid gametes from undifferentiated diploid germ…
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 is the ploidy of the daughter cells at the end of meiosis I? What about at the end of meiosis…
A: Ploidy means the number of chromosome sets in the cell. Meiosis is a type of cell division that is…
Q: What is a sex pilus and which cell type, F- or F+,would produce this structure?
A: The transfer of the genetic material from one bacterium to another through direct contact is termed…
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: 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: In general what is thecause of the aneuploidies?
A: Aneuploid cells have an irregular chromosome count. Because each chromosome comprises hundreds of…
Q: in what meitotic phase we can identify bridge abberation? anaphase I or Metapahse I?
A: During cell cycle breaks are induced after DNA synthesis . During chromatid abberation…
Q: Why some Autopolyploids are sterile?
A: Ploidy level of an organism represent the set of chromosomes in it. Diploid means complete set of…
Q: What is the haploid and diploid chromosome number in the cell below?
A: Haploid chromosome is defined as one set of chromosome. In humans there are 23 pairs of chromosomes.…
Q: Why is meiosis necessary for sexual recombinations?
A: In the process of meiosis, a single cell divides twice to produce four haploid daughter cells…
Q: What chromosome is ABl on?
A: Genetics is the branch of biology which deals with genes, heredity, and genome in the organism.…
Q: What is the divisome?
A: DIVISOME--Definition--It is defined as a complex proteins molecule in bacteria that is responsible…
Q: Why do the daughter cells produced from meiosis I need to divide again in meiosis II?
A: Meiosis is a cell division which decrease the no. of chromosomes in the parent cell by half and…
Q: Determine the gametes by fork-line method: A. TtGgRR
A: Introduction Sir Gregor Mendel is known as Father of Genetics. He was the pioneer scientist who…
What causes the cleavage furrow to ingress?
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