Q: What are the four basic types of introns? In which organisms are they found?
A: Introns are the sequences that do not code for proteins.
Q: Question 15 The following statements best describes the RNA structure EXCEPT A it is usually single ...
A: RNA is a type of nucleic acid which is comprised of single standard polynucleotide chain and respons...
Q: Provide a example of a plant that possess only a primary body and another that has both primary and ...
A: In plants; the Primary plant body is chiefky consists of apical meristem;this apical meristem divide...
Q: Draw and describe the similarities and differences between facilitated diffusion and active transpor...
A: Movement of molecules is one of the vital process in an organic life. This movement is an ever going...
Q: Some cancer researchers have proposed using a-amanitin in cancer therapy. How might a-amanitin be us...
A: Amanitin is considered one of the most effective drugs that can kill cancer cells which are highly p...
Q: Discuss the different structures (primary, secondary, tertiary, and Quaternary structures) of protei...
A: The simplest level of protein structure is primary structure. It is simply the sequence of amino aci...
Q: In your own words, explain how cephalization, jaw development, and paired limbs guided vertebrate ev...
A: Vertebrates are group of animal that have vertebrae column (backbone).
Q: Produce a key to clearly show the nature of the alleles associated with the length of cat fur, and i...
A:
Q: Gene A and B are 500,000 bp apart - the genes are either side of a recombination hot spot. Gene C an...
A: * Recombination hot spots are the regions of genome where it can undergoes recombination in higher ...
Q: The maximum age attainable by a memberof the human species is called the ______.
A: Aging is a progressive process that begins at conception. Our "life," or the time between birth and ...
Q: Differentiate between humoral immunity and cell mediated immunity.
A: The human body has around 37 trillion cells in total, with blood cells accounting for the majority o...
Q: What characteristics are most commonly found in rho-independent terminators?
A: Transcription is terminated in bacteria by two mechanisms: intrinsic (Rho-independent) termination a...
Q: 2. Cows have codominance inheritance rules for their coat color. Cows with the genotype BB are compl...
A: Mendelian inheritance applies to heredity characteristics that are found in sexually reproducing org...
Q: How many nucleosomes are involved per turn of the spiral arrangements of the chromatin fiber?
A: Nucleosome is the main and basic unit of DNA packaging in the eukaryotic cells. The structure of typ...
Q: Question 18 Ribosomes are made up how much RNA component? A 50% B 1/3 c) 2/4 D 2/3
A: The ribosomes are involved in translation that is responsible for the production of polypeptide chai...
Q: 11. What compound does aerobic respiration take place with? A. CO2 B. sunlight C. O2 D. H20
A: Plants obtain energy through respiration, which involves the breakdown of glucose meal in the presen...
Q: Where are the capillaries that supply the epidermis located?
A: The epidermis is the outer skin layer that acts as the first line of defence between the body and th...
Q: True OR False The DNA in the nucleus replicates before mitosis begins.
A: For the proper growth as well as development of an organism , cell division play a vital role . So ,...
Q: How many nucleosomes are involved per turn of the spiral arrangements of the chromatin fiber?
A: Chromatin and chromosome are referred to as the structures associated with the DNA molecule. Double-...
Q: What are the three aspects of the (unified) cell theory?
A: Cell These are the smallest, basic unit of life that is responsible for all of life's processes.
Q: What binds to the -10 consensus sequence found in most bacterial promoters?a. The holoenzyme (core e...
A: Ribonucleic acid or RNA is a type of nucleic acid that helps in the synthesis of protein. It is a si...
Q: How does application of DNA sequencing help Black (and other) populations in establishing their fami...
A: The technique of determining the exact sequence of nucleotides in a strand of DNA is known as DNA se...
Q: If you are to determine evolutionary relationships among different invertebrate groups, which techni...
A: The similarities in structure, breeding behavior, geographical distribution, chromosomes, and bioche...
Q: fons: Read each statement or question below carefully and fill in the blank(s) with the correct answ...
A: The reproductive system in mammals is a complex mechanism involving various hormones and series of c...
Q: 104. Types of gametes formed by the plant with genotype AABbccDdee :- (1) 2 (2) 4 (3) 32 (4) 64
A: Genotype is the collection of genes that every organism carries. Phenotype represents the observable...
Q: How do muscle cells enable cnidarians to function in ways that sponges cannot?
A: Introduction :- Invertebrates such as jellyfish and corals are cnidarians. They are members of the C...
Q: The Watson and Crick model of DNA structure shows the following EXCEPT A the turn of the DNA helix r...
A: Watson and Crick proposed a specific DNA structure called the 3-dimensional DNA. DNA is comprised of...
Q: components of phloem work together
A:
Q: A new species of gerbil is “domesticated” for the pet trade. Wild gerbils have a greyish coat colour...
A: The genotypes to different phenotypes: Pure breeding black gerbil = BB Pure breeding albino gerbil =...
Q: Why some dominant mutant alleles are antimorphic
A: Mutations are modifications or alterations that occur in deoxyribonucleic acid (DNA). Mutagens are t...
Q: What are the culture media that can be used for cultivating non-specific and specific microorganisms...
A: A microbiological culture medium is a substance that promotes the growth, support, and survival of m...
Q: What do the cavities of the neural tube become in the adult brain?
A: The neural tube is the embryonic precursor formed in the 6th week of developing a baby. It later giv...
Q: . K/U Study the drawings below. Identify the phyfum to which each organism belongs. Explain how you ...
A: Protists are unicellular or multicellular organisms, which lack a cell wall and organelles. The orga...
Q: The FDA finds that chickens across the US are infected with a new type of bird-flu. They determine t...
A: Codon is a sequence of three nucleotides that together form unit of genetic code in a DNA or RNA mol...
Q: Question 8 The unique stem-loop structures of the transfer RNA helps the RNA perform its function of...
A: RNA is ribose nucleic acid, having mainly 3 forms. t-RNA--transfer RNA r-RNA -- ribosomal RNA m-RNA ...
Q: Single-celled organisms known as diatoms have glasslike walls and are a type of algae. True False
A: Algae Algae is the photosynthetic organisms maybe unicellular or multicellular.
Q: Expound how the mass of inert yolk influences gastrulation in amphibians, reptiles and mammals.
A: Gastrulation is mark by the cell movement rearrangement within the embryo that leads to formation of...
Q: A number of scientists who study cancer treatment have become interested in telomerase. Why? How mig...
A: Cancer is a gathering of in excess of 100 unique sicknesses. It can foster any place in the body. No...
Q: Explain the process of pre-mRNA splicing in nuclear genes
A: Introduction: Gene expression begins with transcription. RNA polymerase uses DNA as a complementary ...
Q: What is the setting for the refrigerator in storing culture media? Rationalize.
A: INTRODUCTION The setting for the refrigerator in storing culture media is given below.
Q: What is the relationship of the word metabolism and energy? Give an idea of their relationship with ...
A: The process of creating energy (ATP) from nutrients is known as energy metabolism. Metabolism is mad...
Q: Natural selection is a major mechanism through which populations evolve. Describe three other mechan...
A: The theory of evolution is founded on the assumption that all species are connected and evolve over ...
Q: It’s sometimes said that the reason an animal does something is that it’s “for the good of the speci...
A: Natural selection is a selective force acting against an organism to reproduce and survive because t...
Q: During which phase of mitosis will the chromosomes begin to condense so that they are visible under ...
A: Introduction: mitosis is a type of cell division where a mother cell divides into the two daughter c...
Q: During which phase of mitosis do the chromosomes begin to unwind (become less condense)?
A: Mitosis is a cell division process that involves production of two diploid (2n) daughter cells from ...
Q: The supercoiled DNA can either be positively or negatively supercoiled. A True B False
A: The DNA double helix wraps around a nucleosome, forming a supercoil. One turn of a Solenoid is made ...
Q: Define regeneration
A: The act of renewing, rebuilding, and expanding tissues to make genomes, cells, organisms, and ecosys...
Q: Please help me make an abstract using the information below it is the result and discussion of the e...
A: DNA i.e. Deoxyribose nucleotide : It consists of nitrogen bases i.e. Adenine , Guanine , Cytosine an...
Q: What type of nucleic acid does this virus have?
A: Type I BIRD-FLU virus partial sequence: 5' CAUGAUAUUGUACUUU 3' Type II BIRD-FLU virus partial sequen...
Q: You do a testcross to map three genes, Ph, T, and Qc. In the table below, you will find the number o...
A: Chromosomal maps / genetic maps are the map which determines the distance between the two genes . A...
There can be a quantitative determination of the degree of supercoiling in a DNA sample.
- True
- False
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- DNA Profiles as Tools for Identification A PCR-based paternity test is conducted using STRs that consistently produce a unique DNA fragment pattern from a single chromosome. Examining the results of the following Southern blot, which male(s) can be excluded as the father of the child? Which male(s) could be the father of the child?In order to determine the purity of a DNA sample. spectrophotometry can be carried out at _______ to measure DNA, and _______ to measure protein. The ratio _______ is then calculated, and a number between _______ indicates higher purity. 280 nm; 260 nm; A280/A260; 0.5-1 260 nm; 280 nm; A260/A280; 0.5-1 260 nm; 280 nm; A260/A280; 1.5-2 260 nm; 280 nm; A280/A260; 1.5-2Describe the characteristics of the extracted DNA, such as colour, shape, size, and consistency. Based on DNA Extraction experiment
- Estimate the fragment sizes (bp) of the DNA bands from each sample laneSome recombinant DNA techniques depend on the specific hybridization (or annealing) between two complementary DNA fragments. DiscussGive an estimate of the fragment sizes (basepairs) of the DNA bands from each sample lane of the gel electropherogram below. lane 1: lane 2: lane 3:
- Recombinant DNA techniques that require gel electrophoresisWhich of the following criteria do you feel is the most important one to optimize for a DNA profiling methods? Speed Discriminating power Sensitivity Cost False Positive RateWhat are some difficulties with low copy number DNA analysis? What kinds of checks and balances can a laboratory employ to ensure reliability of DNA profiles coming from low amounts of DNA template
- Make 2 mL of 50 fold dilution of DNA solution and sodium phosphate buffer. DNA: 400 uL Sodium phosphate buffer, pH 6.9, 10mL - Calclate amount of DNA & buffer need to make dilution...... and ..... are in product of a pcr reaction: primers nucleotides both noneAside from gel electrophoresis Give another method to quantify DNA. Explain the concept behind this method.
