1. How can the flagellum of euglena enable it to move? 2. What is the importance of eyespot and gullet among euglenas?

Q: K Name and match structure J with its function. [HINT: The structure name is a single word]

A: These structures as mentioned in the hint are of the Echinodermata phylum. These are the group of or...

Q: are part of the adaptive immune system and able to establish immunological and memory. These mark pa...

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

Q: Question 11 The A and B forms of DNA A are both left handed helix B are both right handed helices (c...

A: DNA is a dioxyribose nucleic acid. Which has made up of 2 polynucleotides strands coiled around each...

Q: What is the difference between the template strand and the nontemplate strand?

A: DNA stands for deoxyribonucleic acid is a chemical molecule present within the nucleus of the cell. ...

Q: 13 Black coat color (B) in cocker spaniels is dominant to white coat color (b). Solid coat pattern (...

A: So according to the law of assortment from Mendel's in dihybrid cross . This law states that assortm...

Q: The short DNA shown below is to be sequenced. Using your knowledge of how the Sanger method works, i...

A: This scenario based on DNA sequencing. DNA sequencing is the process of determining the order of nuc...

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: When was each key chemical agent with

A: EPA : Environmental Protection agency . This agency belongs to US . . It is the drinking water quali...

Q: What is the difference between PCR and real-time PCR, and how do you explain it?

A: The Polymerase chain reaction (PCR) is a technique that allows researchers to rapidly make millions ...

Q: What is the diameter of the field of view (DFV) of a 1000x objective lens if the DFV of a 400x objec...

A: Given: Objective lens 1 magnification= 1000x DFV1 = ? Objective lens 2 magnification= 400x DFV2 = 50...

Q: Elucidate the potential reasons why there were changes in the bone structure of the vertebral column...

A: The central axis of the skeleton in all vertebrates is the vertebral column, also known as the spina...

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: Examine the diagram carefully, and then answer the question below. VII VII i iv vii VII This diagram...

A: DNA is genetic material which composed of 4 nucleotide ATGC and present in double helix form.

Q: What is your opinion/stance on biofuels as an alternative energy source?

A: In my view/opinion I consider Biofuel is best alternative energy source. But there are both pros and...

Q: Define about constitutive mutations ?

A: ANSWER;- A constitutive mutant is one in which the gene item is created ceaselessly, that is there a...

Q: Suppose that you are at a party on Friday night, relaxing after your big genetics exam. Someone come...

A: Genetics is a branch of biology which is deals with the study of genes, genetic variation, and hered...

Q: If starch can be used as a source of energy, why does the body break it down into glucose?

A: Starch is a polysaccharide. It is a polymer of glucose bound by alpha 1,4 linkage.

Q: The sequence below is one strand from a double-stranded DNA molecule. How many hydrogen bonds hold t...

A: In a double-helix, DNA is made up of two strands of nucleotide or nitrogenous bases which are hydrog...

Q: not

A: SIGNALING- A ligand binds to a cell -surface receptors, the receptors intracellular domain changes i...

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: esides mosquitoes, what other organisms are known to be affected by Tetramethrin and Lambda-Cyhaloth...

A: Tetramethrin is a synthetic pyrethroid insecticide with a broad spectrum of activity. Pyrethroids ar...

Q: Our review of biogeochemical cycles underscores the importance of primaryproduction to ecosystems an...

A: Primary production is the amount of carbon fixed by photosynthesis.

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: The rocks and sediments in a gizzard that break apart food mechanically play a role similar to what ...

A: Animals have evolved different types of digestive systems to aid in the digestion of the different f...

Q: What are some of the modifications in tRNA that take place through processing?

A: The template strand of DNA is the strand from which mRNA is formed. The non-template strand of DNA a...

Q: Discuss the importance on the addition of ampicillin and arabinose to the medium of the genetically ...

A:  pGLO bacterial transformation experiment. Controls that were incubated with no plasmid (-pGLO) grow...

Q: How do you think human body sustains life

A: For metabolic functioning, all life forms require certain essential chemical components. The element...

Q: What is the effect of increased atmospheric CO2 and reduced ocean pH on skeleton formation in marine...

A: All living organisms that live in the ocean are adapted to the underwater environment. There are sev...

Q: Computer programmers, working with molecular geneticists, have developed programs that can identify ...

A: Transcription is the process of copying information from a strand of DNA into a new messenger RNA mo...

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: What is the role of the SRY gene on the Y chromosome? a. Production of Mullerian hormone proteins b....

A:  

Q: Galton put a lot of emphasis on investigating... a.Differences among individuals. b.Small samples. c...

A: Answer : Option (a) is correct. - differencea among individuals.

Q: Can we manage future agricultural production in ways that feed the growinghuman population in a sust...

A: The quantity of food humans generate today versus the amount required to feed everyone in 30 years f...

Q: Having identified the genetic identity of the parent cats, fully proof your answer to show the simul...

A:     One copy of the genetic code is known to be inherited from the mother's parent with the he...

Q: What are the major classes of cellular RNA?

A: DNA and RNA are nucleic acids. DNA codes for cellular activities and RNA carries out the process of ...

Q: What are the advantages of the API 20E test compared to regular biochemical tube media

A: API 20E test helps in the determination of bacteria from lab-scale activated sludge treatment system...

Q: 1. In the sympathetic division of the ANS, preganglionic neurons are located in spinal segments-----...

A: Human neural system consists of highly specialized cells called neurons. It further divides into cen...

Q: The A and B forms of DNA A are both right handed helices B) both have 10 base pairs per turn of the ...

A: A and B form of DNA : answer (A)are both right handed helices. (B)both have 10 base pairs per turn o...

Q: In eukaryotes, the initial transcript, pre-mRNA, must be modified in three ways before it leaves the...

A: The premature mRNA (pre-mRNA) are produced from the DNA template strand within the nucleus of eukary...

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: Avery, MacLeod and McCarty experiment discovered that DNA is the agent transforming the_ into virule...

A: Avery, Macleod and McCarty used a bacterium Pneumococcus which was used in previous experiment by Gr...

Q: Table 9. Crossing of F, individual with another F, individual. Individual # Gender Genotype Phenotyp...

A: The genes perform the basis of the inheritance. The property in which the sex inherited genes are pr...

Q: Explain how vertebrate evolution was led by cephalization, jaw development, and paired limbs. To fur...

A: The evolution of jaws has had a substantial impact on the evolution of vertebrate history. There is ...

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: Help me, please! I wish I have a lot of time to do it by myself ... This is the article link and a ...

A: An epidemic occurs when a disease spreads rapidly to a large number of hosts in a population in a sh...

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: The interplay of pathogens and antibiotics again brings up the problem of the Red Queen. How does th...

A: A pathogen is any organism that invades and proliferates within an organism's body causes infectious...

Q: Trends and statistics: connection between HBV and HIV

A: HBV and HIV both are blood borne viruses transmitted usually through sexual contact or blood, inject...

Q: Which type/s of histones is/are not part of the histone octamer wrapped by DNA strands but is found ...

A: Histones are proteins that round the DNA. Histones are classified as H2A, H2B, H3, and H4. These cre...

Q: Compare and contrast the structure and function of proteins and nucleic acids. How are they similar ...

A: Protein is composed of amino acids. Proteins are used in the synthesis of hormones and other enzymes...

Archaeal cell structure

Bacteria and archaea are two different prokaryotic domains that, along with eukarya, make up the three domains of life. Archaeal organisms can be found all over the biosphere. Many genera are extremophiles, meaning they thrive in extreme environments such as extremely high temperatures, high salinity, or pH extremes. Bacterial and archaeal cells are characterized by the absence of a nucleus and membrane-bound organelles.