How are male gametophytes and male gametes formed in angiosperms?

Q: Explain about Dicer enzyme ?

A: Metabolic pathways involve both synthetic and degradative processes. Many different chemical and ino...

Q: Define about Drosha enzyme ?

A: RNA is a type of nucleic acid present in the cells.

Q: The TBX20 transcription factor is important for the developmentof heart tissue. Deletion of the Tbx2...

A: T-box transcription factor Tbx20 gene in mice is essential for prenatal cardiomyocyte proliferation ...

Q: what is the flavor of squash soup?

A: Squash Soup often contain other vegetables such as bits of potato carrots, onions, celery and herbs ...

Q: In Figure 5-2, in which of the four processes shown can acomplete bacterial genome be transferred fr...

A: Conjugation, transformation, and transduction are the types of horizontal gene transfer mechanisms w...

Q: During long term aerobic exercise (hours) heart rate increases to maintain CO True False

A: Answer-  True

Q: Define about microRNAs (miRNAs) ?

A: A microRNA which is also known by the name of miRNA, is described as a very small single-stranded as...

Q: What dinosaurs did Acrocanthosaurus lived with in its time in North America like what herbivores or ...

A: The Acrocanthosaurus was a flesh eating theropod that lived all through the Early Cretaceous period ...

Q: What are the main morphological differences between monocot plants and dicot plants?

A: Morphological features refer to the outward appearance of a plant. These change in response to diffe...

Q: The 5'-Cap on viral mRNA plays a critical role in:

A: In molecular biology the 5' cap is a specially altered nucleotide on the 5' end of primary transcrip...

Q: What are the main ecological roles of bacteria?

A: Introduction In this question we will discuss about the ecological roles of bacteria  

Q: Explain the role & importance of small noncoding RNAs (sncRNAs) ?

A: Multicellular eukaryotic organisms form diverse small noncoding RNA (sncRNA) mechanisms for gene reg...

Q: What are the main respective components of cell walls in bacteria, protists, fungi and plants?

A: Cell wall It is a structural layer that surrounds some types of cells,  situated outside the cell m...

Q: Study the diagram below (figure1): Desert food web Hawks Desert foxes Scorpions Snakes Large lizards...

A: Introduction: A food chain is the sequence of biological community (an ecosystem) to obtain nutritio...

Q: The most abundant elements in the foods and beveragesyou consume are oxygen, carbon, hydrogen, and n...

A: An element is a pure substance and an element can neither be created nor broken down by chemical mea...

Q: Analyze efforts to conserve threatened and endangered species

A: Endangered species are the organisms whose number have been reduced drastically due to various reaso...

Q: Where is CSF usually obtained for examination and explain why.

A: Cerebrospinal fluid (CSF) is a clear, colourless bodily fluid found in the tissue that surrounds all...

Q: 1. ____ occurs when allele frequencies change over generation due to random chance. a. extinction ...

A: Introduction: Gene flow is the transfer of alleles or genes from one population to another. This cau...

Q: 4. What are the problems with a repaired PNS axon?

A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...

Q: DNA from a strain of Bacillus subtilis with genotype a + b + c + d + e + is used to transform a stra...

A: Introduction :- The basic physical and functional unit of heredity is the gene. DNA is the material ...

Q: Critically evaluate the technique of serial dilution and state some error risk as well as give recom...

A: Serial dilution is a technique in which a test tube containing the inoculum is diluted by a factor o...

Q: Graph of Absorbance vs Time (mins) 1.8 1.6 1.4 1.2 0.8 0.6 0.4 0.2 10 20 30 40 50 60 70 80 Time (min...

A: What is growth rate = it is the number of growth or increase in number of bacteria per unit time  Wh...

Q: Define the role of mRNA localization and translational control ?

A: mRNA Localization (is a multi-step process). The pre-mRNA is bound by RNA binding proteins (blue &a...

Q: Elaborate on the importance of mitotic and meiotic divisions in the transmission of traits

A: Meiosis is the kind of cell division that makes egg and sperm cells. Mitosis is a fundamental cycle....

Q: How do we know that alternative splicing enables one geneto encode different isoforms with different...

A: Alternative splicing is described as the process in which we need to do the process of selection of ...

Q: What are the materials used to grow microorganism like Spirulina?

A: Introduction In this question we will discuss about the materials used to grow microorganisms like S...

Q: what can we do to help reduce the amount of pollutants such as CO, SO2, NO2, HCl, NO3 in the atmosph...

A: Introduction: Global warming is the condition that results in an increase in the temperature of the ...

Q: what are the prevention, control and treatment of childhood asthma?

A: Introduction: Asthma is a common long-term inflammatory disease of the airways of the lungs. It is c...

Q: In the brain imaging experiment we discussed, where they observe the effects of exercise on endogeno...

A: Excercise leads to various changes in the body such as sweating , activation of sympathetic nervous ...

Q: If our DNA contains all the information about who we are, how can something that does not involve ch...

A: DNA is versatile and a very complex molecule , even more complex is the regulation of expression of ...

Q: DISCUSSION QUESTIONS: Write the answers to these questions on a clean long bond paper. USE BACKGROUN...

A: Chromosomes are thread like structures located inside the nucleus. Chromosomes are made up of protei...

Q: The 5'-Cap on viral MRNA plays a critical role in: Maturation and stability of the MRNA Translocatio...

A:  In eukaryotes, the 5′ cap (cap-0), found on the 5′ end of an mRNA molecule, consists of a guanine n...

Q: The 5'-Cap on viral MRNA plays a critical role in: Maturation and stability of the MRNA Translocatio...

A: Virus have genetic material either RNA or DNA. 

Q: Family name, scientific name, common name, hosts/damage, life cycle, morphological characters (Focus...

A: Family name: A taxonomic rank, or a taxon of that rank, is referred to as a family. There are one or...

Q: 31. One of the reasons that primates have been so evolutionaritly successful for the past 55 million...

A: The primate is a group (class) of mammals under sbuphylum vertebrata includes lemurs, lorises, tarsi...

Q: Graph of Absorbance vs Time(mins) 1.4 1.2 0.8 0.6 0.4 0.2 10 20 30 40 50 60 70 80 Time (mins) -Group...

A: growth rate : it is the rate at which the number of population of bacteria increases in a culture pe...

Q: Why is breathing through the mouth impossible while swallowing a food?

A: Introduction: Breathing is the process of inhaling air into the lungs and then exhaling it out of th...

Q: Complete the sentences below using the words and phrases on the left. Then arrange the text boxes to...

A: 1) DNA double helix, open promoter complex 2) Transcription mRNA, hairpin loop 3) Sigma factor 

Q: How many insect species exist for every mammal species on Earth?

A: Insects are the most abundant species on earth due to their small body size, an abundance of food, h...

Q: Why do you think high nitrogen rates resulted in an increased incidence of rice diseases in general?...

A: Introduction:- There are two sources of nitrogen in soil that could be used by plants: nitrogen-cont...

Q: What kind of contamination would be represented under the Kmer content section? Explain what other s...

A: Kmer content section measures the count of each short nucleotide of length k which has default = 7 ,...

Q: The 5'-Cap on viral mRNA plays a critical role in: Maturation and stability of the MRNA Translocatio...

A: The 5' cap is done during the maturation of the mrna for translation. This process is called  Cappin...

Q: What are the advantages of using the gun in the ecosystem? Try to explain by mercy killing animals ...

A: Mercy killing of animals: it is also known as euthanasia in which animals are killed by using extrem...

Q: What are sticky ends? State their significance in recombination DNA technology.

A: Recombinant DNA Technology is a method for creating artificial DNA by combining genetic resources (D...

Q: The following is a linkage map of chromosome 5 for three genes in tomato: Lf W Lf (normal) vs. If (l...

A: Crossing over is the process by which non-sister chromatids of homologous chromosomes share genetic ...

Q: Why is it difficult to cure AIDS?

A: * Human immuno deficiency called HIV that attacks body immune system. *if HIV is not treated it can ...

Q: A microbial geneticist isolates a new mutation in E. coliand wishes to map its chromosomal location....

A: A mutation is a sudden change in the DNA sequence. Mutations can result from mistakes during DNA cop...

Q: Define RNA interference (RNAi)  mechanism ?

A: RNA interference is a natural phenomenon, where an mRNA is silenced so it inhibits the protein coded...

Q: What observation regarding AP3 suggests that clathrin is an accessory protein to a core coat compose...

A: Cell signalling is the mechanism through which cells communicate with one another. To start a signal...