humans cell nuclues contain 46 chromosomes or blanks pairs

Q: The diploid number of chromosomes in a certain animal is 8 (2n 8). How do the four pairs of…

A: Introduction  A normal cell can divide by two process one is Mitotic cell division while the second…

Q: The chromosome are arranged to show

A: A karyotype is a complete picture of the chromosome set of an individual. For example, a human has…

Q: pairs of homologous chromosomes do not separate normally during | Choose ) meiosis one copy of a…

A: Answer of 1) : Nondisjuction  Because it takes place whilst homologous chromosomes or sister…

Q: What is the functional unit of the chromosome? O RNA O DNA O Gene None of these

A: DNA or deoxyribonucleic acid is the genetic material in living organisms that is present in the…

Q: 8. Which is the correct description of the human chromosome number? * O2n =23 (where n=23, the…

A: Chromosomes are long, thread-like structures made of DNA and protein molecules that carry genetic…

Q: Structure of a Chromosome

A: Introduction: Chromosomes are thread-like structures present inside the nucleus and they carry…

Q: Chromosomes number 1 through 22 are known as the: O strange sex chromosomes O boring O fun O…

A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…

Q: chromosome function in plants and animals

A: Chromosome is defined as a thread like structure of nucleic acids and protein present in the nucleus…

Q: After the DNA in a chromosome has replicated (made an identical copy) but still consists of two…

A: DNA replication is a process by which the DNA present in cell makes an identical copy of its own. It…

Q: Chromatin is OA complex of cohesin proteins O Where sister chromatids are most closely attached A…

A: Biological macromolecules are those large molecules that are necessary for the survival and growth…

Q: 4. A diploid organism has 3 different chromosomes, A, B, C and D, so its normal chromosomal makeup…

A: A species' number of chromosomes is fixed, and if it changes, it can cause disease or death. The…

Q: How many types of histone proteins are present in eukaryotic chromatin? 3

A: In the nucleus of eukaryotic cells, histones are highly basic proteins with a lot of lysine and…

Q: Knowing what you do about the phases (you can't see this detail from the picture), which cells…

A: The cell cycle is also called the life cycle of a cell and includes all the phases through which a…

Q: Zygosity Homologous chromosomes Aneuploidy Recombination Mitosis ||| ||| Sexually reproducing…

A: Cell division is the process by which cell divides to produce daughter cells. It is of two types:…

Q: Gametes of an alien fruit fly (found by Dr. through meiosis just like Earth-dwelling fruit flies.…

A: Chromosomes are the thread-like structures that are present inside the nucleus of the cell. It is…

Q: How many number of histone proteins present in a nucleosome? 4 6 9.

A: The nucleosome is the basic structural unit of DNA packaging in eukaryotes and represents a segment…

Q: Hypothetically speaking, what will be the form of chromosomes if it will condense after S phase? O…

A: Most genes on the X chromosome are distinct from those on the Y chromosome. As a result, men and…

Q: A duplicated chromosome consists of two ______.     centromeres     centrosomes     genomes…

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

Q: A _is a structure made of DNA that is condensed and coiled around proteins into a definite shape…

A: DNA is the genetic material present in the nucleus. It stores the information for carrying out all…

Q: (Choo (Choose Interphase Programed cell death The death of a cell due to the accumulation of…

A: Mitosis : Replication Division of eukaryotic cell nuclear content.              Interphase : In this…

Q: The Eukaryotic Chromosome Consists of a Linear DNA Double Helix Bound to Proteins

A: The DNA helix is wrapped around proreins to form Nucleosomes.

Q: 79″F Label the cell structures by letter: **** Nuclear membrane Centriole Spindle Chromatin…

A: The image given shows the cell division where chromosomes divide and get distributed eventually in…

Q: Two chromosomes have identical shape, size, and alleles. These chromosomes are very likely:

A: Homologous Chromosomes:Every individual has two arrangements of chromosomes, one acquired from each…

Q: What is shown in the image above?   independent assortment   anaphase I of meiosis   crossing over…

A: Independent assortment is the law proposed by Mendel. It describes how differently each allele of a…

Q: In nucleosomes, DNA wrapped around octamar of histone proteins O False True

A: A histone octamer is the eight protein complex found at the focal point of a nucleosome center…

Q: Explain why mitosis is normal in cells containing both horse and donkey chromosomes, but the mixed…

A: Mule is the offspring of a male donkey and a female horse. Horses and donkeys are different species,…

Q: Describe in 4 steps the condensation of eukaryotic DNA to chromosomes. Describe each one briefly.…

A: In mitosis, the nuclear DNA of the cell condenses into visible chromosomes and is pulled apart by…

Q: Alpha helices and beta sheets are characteristic of protein primary structure secondary structure…

A: Introduction  Proteins are macromolecules made up of chains of amino acids. They are involved in…

Q: Including the sex chromosomesthe chromosome number of a normal human cell is 23 and the chromosome…

A: Introduction  HeLa cells are the cancer growth cells which is taken from an African lady named…

Q: Discuss the three levels of chromosome organization that allows for effective packaging of genetic…

A: Chromosomal DNA is packaged inside microscopic nuclei with the assistance of histones. The three…

Q: raw a cell with it's chromosomes showing 2n=12

A: 2n =12 chromosomes mean that chromosomes are paired thus making the haploid (n) number would be half…

Q: Question 1 Two divisions O Mitosis O Meiosis O Both mitosis and meiosis

A: Introduction :  Cell cycle is a series of events that occur in a cell when it grows and divides.…

Q: In prokaryotes the chromosome consists of a single and circular DNA with large amount of specific…

A: Prokaryotes - nucleus absent. Genetic material is present in nucleoid.

Q: difference between bacterial chromosome and eukaryotic chromosome

A: Chromosomes are structure that contain genetic materials. They contain hundreds to thousands of…

Q: Which one of the following entries most accurately states the number of DNA double helices…

A: A chromatid is one of two identical halves of a replicated chromosome.

Q: SMC proteins and SCC1 forming a ring-like structure to hold the sister chromatids. * True O False

A: INTRODUCTION SMC proteins SMC proteins are known as structural maintenance of chromosome.  These…

Q: DNA that is typically loosely spread out as thin threads within the nucleus is known as ________.…

A: The DNA that is typically loosely spread out as thin threads within the nucleus is known as…

Q: in the table below regarding each hypothetical cell. Are the chromosomes How many sister chromatids…

A: Chromosomes are thread-like structures in which DNA is tightly packaged within the nucleus. DNA is…

Q: Identify what is the name of structures of 8, 9, 10.

A: Chromosome:  It is the long DNA molecule with part or all genetic material of an organism. These…

Q: Some portions of the chromosomes are coiled with inactive genes as electron-dense masses of…

A: Packaging of DNA: The DNA in eukaryotes is assembled into chromatin, which are complexes made of…

Q: Which of the following statement is correct about chromosome?    options:   Chromosomes are…

A: In particular organism genetic material is DNA. DNA along with histones form Nucleosome. Nucleosome…

Q: ent COMPARE & CONTRAST FRAME- MITOSIS VS MEIOSIS How aremitosis and melosS alike ?

A: Cell division is defined as the process by which cell multiply and involve nuclear as well as…

Q: Homologous chromosomes are Group of answer choices inherited from 2 parents are sister chromatids…

A: Chromosomes are thread-like structures located inside the nucleus of a cell. Itbis made of DNA and…

Q: In the cell cycle of eukaryotes S phase includes the duplication of DNA. ylgn O ihi O

A: Cell cycle: - Sequential process. - Regulated process. - Irreversible. - Dependent phase of events.

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.