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Q: Identify two (2) important protozoan parasites of humans and discuss their importance in human healt...

A: Protozoa are single celled, microscopic, free living organism or that can be parasitic in nature. It...

Q: The A and B forms of DNA A are both left handed helix B are both right handed helices both have 12 b...

A: Introduction:  B-DNA is the most commonly found form of DNA in nature. This form of DNA is very narr...

Q: RNA polymerases carry out transcription much more slowly than DNA polymerases carry out replication....

A: The process of producing two daughter strands, each containing half of the original DNA double helix...

Q: Human Testis 1. pointed spermatogenic cell? 2. cell origin of #1? 3. cell derivative of #1? 4. cell ...

A: INTRODUCTION Primary spermatocyte They are large diploid cells into which a spermatogonium develops....

Q: Do the differences among plant species result in higher levels of primary production than would be p...

A: Primary production represents the amount of carbon fixed by the process of photosynthesis in a given...

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: 1. How many spermatids are formed from 10 spermatogonium B?  a. 20 b. 40 c. 80 d. 160 2. Oogenic gr...

A: Spermatids These are haploid cells that are produced through the second division of a spermatocyte. ...

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: Non-disjunction during meiosis can lead to several chromosomal disorders. When can non-disjunction o...

A: Cell division is a phenomenon during which parent cell splits and gives rise to new cells . It comp...

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: Enhancers are sequences that affect the initiation of the transcription of genes that are hundreds o...

A: Regulatory sequences are associated with genes and regulate the level of their expression.  

Q: Because genetic engineering involves the modification of an organism's set of instructions, it has c...

A: * Genetic engineering means it is the process of using rDNA technology to alter the genes of organis...

Q: Which would be worse for an organism? Briefly explain your answer. B. The spliceosome can no longer ...

A: Cell is the basic and fundamental unit of life. Survibility of life depend upon individual cells whi...

Q: Explain why some seeds undergo dormancy, and give someexamples of triggers for germination.

A: The embryonic stage of a plant's life is represented by the seed. The embryo (immature seed), endosp...

Q: Would you expect to see attenuation in the lac operon and other operons that control the metabolism ...

A: A group of genes that are transcribed under a single promoter and an operator is referred to as oper...

Q: When are primary oocytes and spermatocytes produced, and how manygametes result from one diploid cel...

A: Spermatogenesis as the name suggests is the production of male gametes by the process of meiosis, wh...

Q: What groups within a phylum from invertebrates should be elevated into their own phylum? Explain.

A: Vertebrate and invertebrate are clearly divided are separated by presence and absence of vertebral c...

Q: In Find the genotype of the missing parent. In Andalusian fowls, the black (B) and white (W) alleles...

A: 1. The genotypes of missing parents will be - BW and WW. 2. The probability of black offspring (BB) ...

Q: item is given example. as an

A: Transgenic organisms in agriculture :- Examples- Bt cotton, Bt brinjal. To obtain a transgenic organ...

Q: How would the deletion of the following sequences or features most likely affect a eukaryotic pre-mR...

A: The pre-mRNA undergoes many changes to become functional mRNA. Poly(A) tail is the long tail of aden...

Q: Suppose that the string of A nucleotides following the inverted repeat in a rho-independent terminat...

A: Rho-independent termination (also known as intrinsic termination) is a transcriptional termination m...

Q: Make a diagram/interpretation of the feedback mechanisms involved in regulating processes in the fem...

A: The female reproductive processes are highly regulated by different hormones released by endocrine g...

Q: What is the sequence of the sample DNA submitted for sequencing given the gel electrophoresis profil...

A: Sanger sequencing method is chain terminating method. 

Q: why is determinatoin of evolutionary relationships among different invertebrate phyla important?

A: Determination of evolutionary relationships among different invertebrate phyla important because it ...

Q: Write a detailed account below of how the body monitors and regulates blood  pressure through the en...

A: Blood pressure : It is the force of the blood pushing against the walls of arteries. each beat of th...

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: Select the best answer or answers from the choices given: All of the following are considered innate...

A: Immune response is defined as the process through which the body's immune cells recognise invading p...

Q: Exposure to______ can trigger seed germination. a. light c. smoke b. cold d. all can be triggers

A: Seed germination is the process in which dormant embryo of seed resumes metabolic activities and gro...

Q: B. Fill in the table by giving at least three examples on the following mechanisms of reproductive i...

A: Reproductive isolation is a mechanism / phenomenon in which two species unable to undergo successful...

Q: What role, if any, do the noncanonical Wnt signaling pathways have inplanarian regeneration?

A: Regeneration is an evolutionarily conserved process in animal kingdoms, however, the regenerative ca...

Q: The difference between arteries in your body and the pulmonary artery is the following: O The pulmon...

A: Introduction Arteries and veins (also known as blood vessels) are muscular tubes through which blood...

Q: The final amount of each primer required in a PCR reaction is 25 picomol. If the total volume of the...

A: This is a dilution based calculation. We can dilute a stock solution to get the desired concentratio...

Q: What are some of the costs and benefits to an apple tree and to the honeybee that pollinates it?

A: Symbiosis is a generic term for interspecific interactions in which the two species live collectivel...

Q: In The Lake as a Microcosm, this 10th century biologist showed that romoving just one species trom a...

A: The correct answer to the given option is d. A microcosm is a widely studied isolated system and thi...

Q: what is the process whereby a neoblast can create the 30 or so cell types of the adult planarian? Wh...

A: Planarians have complex internal anatomy that includes the nervous system, muscle, excretory system,...

Q: Are ciliates capable of changing their shape? Why?

A: CILIATES Ciliates are most intense and diversified group. They are unicellular organisms with the f...

Q: Using suitable examples, explain the relationship between floraltraits and coevolved pollination vec...

A: Introduction: Floral traits of the influences of angiosperm have coevolved to secure and maximize po...

Q: What are the differences between tests for IgM vs IgG and what is the significance of these tests?

A:

Q: Why is gene regulation important for bacterial cells?

A: Gene regulation is the process of turning on and off genes. Gene regulation can help an organism ada...

Q: If a splice site were mutated so that splicing did not take place, what would be the effect on the m...

A: Cells are the functional units of life. Cells make the whole organism.  Cells consists of various ce...

Q: Questión 15 The following statements best describes the RNA structure EXCEPT A it is usually single ...

A: Answer : Option D is correct. - according to the question asked above, option (d) cannot describe th...

Q: What are riboswitches? How do they control gene expression? How do riboswitches differ from RNA-medi...

A: Riboswitches are RNA elements. They control the gene expression. They bind to small metabolites. The...

Q: 1. How can the flagellum of euglena enable it to move? 2. What is the importance of eyespot and gull...

A: 1. Before directly knowing about how the flagellum of euglena enable it to move we should know about...

Q: Explain why mutations in the lacI gene are trans in their effects, but mutations in the lacO gene ar...

A: "Gene regulation" is described as "any type of modification in the gene that results in a different ...

Q: What is the answer to the question: "What is the minimum size of a cell for carrying out all of life...

A: Metazoa is a phylum of multicellular eukaryotes that includes heterotrophic creatures in a monophyle...

Q: How are rare bases incorporated into tRNAs?a. Encoded by guide RNAsb. By chemical changes to one of ...

A: There is a presence of a total of four distinct nucleotides in RNA. These nucleotides are: Guanine....

Q: B.Use the simple flow chart on the next page to outline the basic procedure of geneticengineeringin ...

A: Genetic engineering is the process by which we make hybrid cell which is having better characters an...

Q: What did Watson and Crick agree with Rosalind Franklin's data? DNA has two similar parts that are pa...

A: Cells, the most fundamental unit of life, are found in all living things. All of life's vital activi...

Q: Prompt With many issues regarding stem cell research with one of them being the utilization of embry...

A: INTRODUCTION Stem cell research The scientists grow stem cells in the lab and later the cells are ma...

Q: 5. Describe the difference between how identical twins and fraternal twins (non-identical) produced ...

A: Introduction :- The term "twins" refers to two children born from the same pregnancy and delivery. M...

Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.