In a plant in which 2n = 24, what is the total number of chromosomes present at the end of interphase? A) 6 B) 12 C) 24 D) 48 E) 96

Q: With regard to sister chromatids, which phase of mitosis is theorganization phase, and which is the…

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

Q: Why are the two cells produced by the cell cycle genetically identical?

A: The cell is the basic unit of life. The tissue is a group of cells that perform a specific function.…

Q: What is a structure in the centromere region of each chromatid that is specialized for conveyance?

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

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

A: Chromosome contains two chromatin fibers/chromatids.

Q: When homologous chromosomes cross over, what is the result?   a. Two sister chromatids get…

A: In homologous recombination similar regions of chromosomes exchange DNA because of which…

Q: How fast do yeast multiply?

A: Yeasts are unicellular, eukaryotic single-celled micro-organisms that belong to the Kingdom Fungus.…

Q: What may be expected to happen chromosomally and genetically to: an unfertilized egg that undergoes…

A: 1: Haploid Chromosomes or 1 genomic set are present and duplicate or will not enter mitosis. There…

Q: If you are experimenting on a haploid cell with DNA that is equal to 5. What is the amount of DNA…

A: * meiosis is of two types  Meiosis I Meiosis II *meiosis I will contain following stages…

Q: Which  cell has a Nucleoid?

A: Basic structural and purposeful unit of all living organisms is cell. All living things square…

Q: In plant trichomes, is it septate?

A: Answer: TRICHOMES = These are the hair like structures on the epidermal layer of plants, lichen etc…

Q: All of the following events happen during prophase, except...    A. Chromosomes are lined up in the…

A: Option  A -Chromosomes lined up in the middle of the cell

Q: What are the “chiasms” of homologous chromosomes seen in prophase I?

A: Prophase I is a stage in meiosis.  Meiosis is a mode of cell division. In this a cell divides to…

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 is cell body of nucleous?

A: The central nervous system is known to contain a cluster of neurons, more specifically called the…

Q: This event occurs during prophase I when homologous chromosomes pair up and form a tetrad

A: Recombination frequency is a measure of single cross over that takes place between the two genes…

Q: A petri dish contains one yeast cell whose nucleus contains 24 chromosomes.  After the cell…

A: B) 4....48. Is the correct answer.

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

A:

Q: What is the point called where two non sister chromatids cross over?

A: The process of breaking down of nuclear envelope and the association of proteins associated with…

Q: Are sister chromatids identical to each other in nucleotide sequence?

A: Often the term sister chromatid is misunderstood as the homologous chromosome. But homologous and…

Q: What is the name of the structure that holds the sister chromatids together? See image below.

A: CENTROMERE - A highly condensed DNA sequence that is transcriptionally inactive and is…

Q: What molecular mechanism seems to be responsible for the movement of the poles during anaphase?

A: Anaphase is a dynamic stage of the mitotic stage during which each pair of chromosomes is separated…

Q: In the experiment of cell fusion, when tumor cells were fused with normal cells, the initially…

A: Cell fusion is an important cellular process in which two or more uninucleate cells merge to form a…

Q: Imagine a nucleus that has 10 chromosomes. How many chromosomes does it have before prophase begins?…

A: Mitosis is a distinctive cell cycle phase primarily characterized by specific states of chromosome…

Q: At what point duplicated chromosomes are joined?

A: Chromosomes are present inside the cell nucleus and made up of DNA (Deoxyribonucleic acid) molecules…

Q: What holds the chromatids together?

A: A sister chromatid are identical copies (chromatids) that are produced by the DNA replication of a…

Q: Differentiate prophase I vs. prophase II

A: Meiosis type of cell division produces four daughter cells from one parent cell which completes in…

Q: What structure is most important in forming the tetrads? a. centromere b. synaptonemal complex c.…

A: Chromosomes are the rod shaped, dark stained bodies which are most prominently seen in the metaphase…

Q: Does resulting daughter cells in mitosis and meiosis will have identical features with their parent…

A: Answer 1- Meiosis is the process through which daughter cells are formed in sexually reproducing…

Q: Draw a single duplicated chromosome, labeling the chromatid(s) and centromere

A: The answer to your question is given in the step below. Kindly refer to the image.

Q: What is the key difference between metaphase I and metaphase II?

A: In meiosis, diploid germ cells are formed by two nuclear divisions, that is meiosis I and meiosis…

Q: What controls the breakdown of bonds between sister chromatids?

A: Chromosomes are carrier of deoxyribonucleic acid (DNA). Chromosome replication occurs in S-phase of…

Q: Which of the following organelle control intracellular digestion of macromolecules with the help of…

A: Hydrolytic enzymes catalyse the hydrolysis of peptide, ester, glycosidic, ether, carbon-carbon…

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: How many DNA molecules are in a mitotic chromosome?How many strands of DNA nucleotides are in a…

A: DNA is deoxyribonucleic acid which contains nitrogenous base pairs, deoxyribose sugar, and phosphate…

Q: If a cell containing 8 chromosomes divides by mitosis, how many chromosomes will be in each daughter…

A: Cells are the basic structural and functional unit of the living organisms. Cells undergo mitotic…

Q: Pairs of homologous chromosomes separate during the following stage of cell division Select one: a.…

A: Chromosomes are the basic blueprint of any organism. All the proteins that will be expressed are…

Q: In the example below, how many chromosomes are in each cell in prophase and anaphase? a. 8and8 b.…

A: Prophase and anaphase are two phases of the mitotic cell division. Prophase is the first stage in…

Q: A mouse skin cell containing 40 chromosomes undergoes mitosis. What would most likely be the results…

A: There are two types of cell division. These are Mitosis and Meiosis. Mitosis is a type of cell…

Q: If you are experimenting on a haploid cell with DNA that is equal to 5. What is the amount of DNA…

A: Prophase 1 is the stage of meiosis 1. The condensation of chromosomes occur in the prophase 1.

Q: What are the number of chromosomes in yeast?

A: Eukaryotic organisms have cells with a nucleus that is enclosed in a nuclear envelope. These belong…

Q: Can haploid cells divide by mitosis? by meiosis?

A: Introduction  Cytology refers to the study of cells such as cell morphology, physiology, etc. As we…

Q: How many chromatids are present  in a duplicated chromosome?

A: Chromosomes are the amalgamation and groupings of deoxyribonucleic acids in a cluster within the…

Q: If a gamete of an unknown animal species has 44 chromosomes, how many of each of the following…

A: Number of chromosome decided on the basis of centromere not on the basis of chromatid even a single…

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…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.