For each of the following sentences, choose one of the options enclosed in square brackets to make a correct statement. In meiosis I, the kinetochores on sister chromatids behave [independently/coordinately] and thus attach to microtubules from the [same/opposite] spindle. The cohesin- mediated glue between [chromatids/homologs] is regulated differently near the centromeres than along the chromosome arms. Cohesion is lost first at the [centromeres/arms] to allow segregation of [chromatids/homologs] and is lost later at the [centromeres/arms] to trigger segregation of [chromatids/homologs].

Q: Marcus is admitted to the hospital for a bone marrow stem cell transplant from his brother, What…

A: Introduction They are of various types of stem cells.Embryonic stem cells - They are isolated from…

Q: Why do we need the KANR  gene next to the SPA tag sequence?  Briefly explain how and why it is going…

A: * purification of affinity tagged proteins along with mass spectrometry is used as it allows for…

Q: Conservation of developmental genes in evolution is supported by all of the observations except that…

A: INTRODUCTION A homeotic gene is a collection of genes that manage the pattern of body formation…

Q: ain also.

A: Jawless fishes are about 100 species. Bony fishes are about 58% if all species so, they are the…

Q: All of the following are functions of connective tissues, except energy and mineral storage.…

A: Introduction Cells, fibres, and a gel-like material make up connective tissue.

Q: Match the following Prompts An AT-rich region found in eukaryotic promoters is called the box. The…

A: 1. An AT rich region found in the eukaryotic promoters is called the "TATA box".  The consensus…

Q: Cellular reprogramming and induced pluripotent stem cells have allowed scientists to model various…

A: Pluripotent stem cells are the cells which can be developed into any type of the cell in the body .

Q: According to the book Crawford, Dorothy H. Viruses:  A Very Short Introduction, did the author…

A: Yes,Author Dorothy H.writes the book excellent ,that includes all the information related to virus…

Q: Having a widows peak is dominant W to not having one (ww) Having attached earlobes is a recessive…

A: Introduction Dominant traits are those phenotypic characteristics or properties which are inherited…

Q: According to the recent malaria report of the Department of Health, Disease and Prevention Bureau…

A: The malarial parasite passes its life cycle I'm two different host's. The man is the intermediate…

Q: What are some examples of organs and tissues where mitosis is more frequent, less frequent or…

A: Introduction - Mitosis is a stage of the cell cycle in which duplicated chromosomes are split into…

Q: true or false: meiosis takes place in body cells called somatic cells.

A: Meiosis is a double division which occurs in a diploid cell and gives rise to four haploid cells…

Q: Which of the stated relationships is correct? A. the heart is inferior to the clavicle B. the…

A: A large part of beginning of study of anatomy and physiology is the learning of specialised terms…

Q: What is mitosis? What is the importance of mitosis?

A: Cell division is the process by which a cell can divide itself into two cells. the process of cell…

Q: Why are parasitic infections of nematodes still common despite our understanding of their biology?…

A: The parasitic can reside in the human body's small intestine. They reproduce by laying eggs and…

Q: Why does a muscle cell express a different set of genies compared to a white blood cell? Why do…

A: The muscle cells and the white blood cells comprise different sets of genies depending on different…

Q: Question 28 Intrinsic RNA chain termination is determined by specific sequences in the DNA called…

A: Dna super coils: DNA supercoiling is important for DNA packaging within all cells. Termination…

Q: how does a high complexity habitat influence predator and prey interaction

A: * The relationship between predators and prey is important in structuring ecological communities…

Q: false: in humans, genes make up more than 50% of the genome.

A: Most genomes, including the human genome and those of all other cellular life forms, are made of DNA

Q: Is the DNA of our father identical with the DNA in our mother?

A: ANSWER;- NO, the DNA of our father is identical to the DNA of our mother.

Q: 3. Compute for the amount of each component of KCN broth if you were to prepare 280 ml. Express your…

A: We are given the amount of each component present in liter of the culture. 3 g of Polypeptone is in…

Q: Why does the genus Streptomyces of the Actinobacteria clade secrete chemicals (antibiotics) that can…

A: Streptomyces is the largest genus of the Actinomycetota and the type genus of the family…

Q: Which of the following is required for RNA splicing to occur? A a free 5 hydroxyl created by…

A: In vertebrates, there are three signals for direct splicing: - 5/ splice site hydroxylation…

Q: 1. What is xenotransplantation?

A: Ethical issues concerning the xenotransplantation include the animal rights, allocation of…

Q: what is the name of this structure and what fun function and pathway does if take?

A: Introduction The reactions which help in converting pyruvic acid to carbon dioxide and water in…

Q: In cell growth, how does the normal allele of BRCA1 work? Is it an oncogene or a tumor suppressor…

A: Cell growth is a very complex and orderly process in which various enzymes cell signaling pathways…

Q: Pruning results in a greater photosynthetic area and therefore lesser foods are manufactured? True…

A: Introduction Pruning is when you selectively remove branches from a tree, It allows room for new…

Q: What are the checkpoints in the completion of the life cycle of nematomorphs? Would it be easier if…

A: The phylum Nematomorpha (also called horsehair worms) is constituted of orders: Nectonematoidea…

Q: A cell that proceeded to cell division without completing S phase would:

A: The first stage of the cell division is Interphase. Interphase is further divided into 3 stages -…

Q: All of the following are functions of connective tissues, except energy and mineral storage.…

A: Introduction Tissue is a collection of cells with similar structures that work together as a unit.…

Q: Compare and contrast the different transport mechanisms: Electrochemical gradient…

A: Factor Passive Diffusion Facilitated Diffusion Active Transport Electrochemical Gradient Present…

Q: A strictly fermentative bacterium produces ATP A. by glycolysis only. B. by photosynthesis only. O…

A: Fermentation: It is an anaerobic process(absence of oxygen) for breaking down glucose to produce…

Q: What are the three models of DNA replication? With the aid of illustrations, show how the Meselson…

A: DNA replication is an important process that takes place in all living cells. It is necessary to…

Q: Why do you think the researchers removed the genes for the three carbohydrate antigens, pig growth…

A: Commonly used pig breeds in research include Duroc, Yorkshire, Landrace, and crossbreeds. Domestic…

Q: 1. The alternate form of a gene is   A. Alternate type   B. Recessive character   C. Dominant…

A: Genes are DNA sequences of nucleotides that code for RNA, which in turn codes for a protein. In the…

Q: Rowena was tasked to measure the actual magnification of her specimen mounted on a slide without…

A: A microscope is a piece of scientific equipment which magnifies very small objects that are too…

Q: The signaling pathway in mammalian cells that senses low oxygen inhibits the activity of the…

A: Animal cells produce ATP by cellular respiration, whereas plant cells produce carbohydrates through…

Q: How is the mRNA strand altered during mRNA processing (the intermediate step between transcription…

A: RNA splicing occurs during or after transcription in nucleus for the nucleus encoded genes. It plays…

Q: Choose the correct answer. These are chemical messenger that modulate the development of the…

A:

Q: True or false and explain why. According to the Goldman equation, resting membrane potential of a…

A: * Goldman equation also called as Goldman Hodgkin Katz voltage equation that is used in cell…

Q: During the glucose oxidation, oxygen (O,) is used to oxidize glucose into CO, and water. What are…

A: Glycolysis is step one in the breakdown of glucose to extract electricity for mobile metabolism.…

Q: ructures commonly present in all vertebrate kidneys?

A: Vertebrates have the following variation of the kidneys: - Pronephros Mesonephros Metanephros

Q: Question 47 The proofreading of DNA is essential for faithful replication. A) True B) False

A: Proof reading of DNA is essential for maintaining a homogenous DNA across multiple cycles of…

Q: What type of DNA changes are there for c.316-106C>G mutation. Is it pathogenic?

A: This is showing a type of mutation in which cytosine has been converted into guanine. Cytosine is a…

Q: What are 7 herbivores organisms

A: Herbivores, are those animals that are anatomically and physiologically adapted to eating plant…

Q: A cell that proceeded to cell division without completing S phase would: O have extra ribosomes have…

A: Answer :- (D) not have enough DNA to divide normally

Q: The fact that some eukaryotic rRNAs are self-splicing indicates that A RNA structures are highly…

A: In eukaryotes, rRNA have a sigma factor which makes the self splicable and hence the highly variable…

Q: Which of the stated relationships is correct? A. the heart is inferior to the clavicle B. the…

A: Introduction Proximal means close to or near the trunk or the origin of a part (example, the…

Q: Q2/ What is meaning the Nitrification and De-nitrification processes ?

A: Nitrification is a microbial process that which reduced nitrogen compounds (primarily ammonia) are…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: