What cells does protection against pathogens?

Q: uppose that E. coli sustains a mutation in its gene for the lac operon repressor making the represso...

A: Lac operon is a group of three genes that are regulated by a single promoter. This operon encodes a ...

Q: Differential diagnosis of ambiguous genitalia includes the following measures, except:A. Bone age x ...

A: Answer: Introduction: In infant with ambiguous genitalia, or genital organ may be incompletely devel...

Q: How would you set up a herbarium?

A: Taxonomy includes describing, naming, and classifying the organisms.  

Q: Differentiate between turgid and flaccid cell.

A: The cell wall is a membranous layer that supports the structure of the cell and helps in the transpo...

Q: Explain why it is necessary to know the life history of a tunicate to understand why tunicates are c...

A: Tunicates are members of the subphylum Urochordata and phylum Chordata. They are small marine animal...

Q: What are the criteria used in phylogenetic analysis todesignate a new microbial species?

A: Biological diversity is the presence of variability of life on Earth. It measures the genetic variat...

Q: Measurements Fill the following table regarding measurements. Identify 5 different things that you c...

A:    There are different types of objects in the environment; both living and non-living whose quantit...

Q: Which of the following is not involved in quorum sensing?a. accumulation of inducer moleculesb. a ce...

A: Quorum sensing is a process of regulating gene expression that activates in the presence of disrupti...

Q: How do mycorrhizal fungi promote plant diversity?

A: Mycorrhizae refers to the mutualistic association between the fungi and plant roots. The fungus tran...

Q: The skull bones are divided into two regions. What are those regions: REGION#1: REGION #2: For REGIO...

A: Skull is the bony region that forms the head in vertebrates. Skull is made up of total 22 bones. Mos...

Q: Are homologous pairs of chromosomes present in mitosis? Explain your reasoning.

A: Homologous chromosomes are made up of chromosome pairs Probably of the same length along with the Ce...

Q: Analysis of pedigrees to determine the probability of someoneinheriting a trait , indicate whether i...

A: Genetics is a branch of biology. It deals with the variation and heredity of organisms. Genetics aro...

Q: A pea plant from a pure-breeding strain that is tall, has green pods, and has purple flowers that ar...

A: A pure breeding strain is homozygous trait whether dominant or recessive. The dominant trait is the ...

Q: Identify the organism A filopodia Name the round organelle B Name the nucleic acid found within this...

A: The question is a spotting type question under which a microscopic image of an organism is given tha...

Q: You design Drosophila crosses to provide recombinationdata for gene a, which is located on the chrom...

A: The drosophila is commonly called fruit fly, and it is commonly used for the study of genetics. The ...

Q: What is the function of theflagellum of the sperm cell?How is it formed?

A: The reproductive system of male is a network of internal and external organs that function to suppor...

Q: Compare the genetic variation found in sporesproduced in the sexual and asexual portions of the life...

A: Spores are reproductive units of the bacteria, algae, fungi, and nonflowering plants. They are singl...

Q: Reflection about Cell Division

A: To live, each organism goes through a series of cell divisions, and there are two distinct forms of ...

Q: Describe the hepatic or renal portal system of scoliodon?

A: Step 1 Scoliodon (Dog fish or dog shark) are placed under the class Chondrichthyes. They are cartila...

Q: A gene pool is a. all of the genes in a single individual. b. all of the genes in the gametes from a...

A: Evolution brings out the difference between descendants and ancestors. The origin of life on the ear...

Q: In taxonomy, what traits have been used to classify species? Select all that apply. A. Differences i...

A: Taxonomy (which literally means "arrangement law") is the science of classifying species to create g...

Q: Identify two characteristics that make mitochondria different from other organelles .

A: Cell organelles are structures within a cell that perform specific functions like controlling cell g...

Q: Once you reach your adult size, your bones stop undergoing any changes or remodeling. a) true ...

A: Bone realities  The aspect of the body that contains the most bones is the hand. It's comprised of a...

Q: Hello! Can you please help me answer this question "What are the genotypes of the pea plants that wo...

A: The alleles are generally of dominant and recessive type and some other forms like codominant and in...

Q: Fill in the blank:  The pulmonary and aortic valves open when the pressure in the __________________...

A: The heart is the hollow conical organ that is present to the left of the breastbone. The heart pumps...

Q: What is phosphorylation? What are some biological processes in which phosphorylation plays a critica...

A: Biological processes are processes crucial for living organisms to live. The biological processes ar...

Q: Membrane synthesis in the cell involves the movement of specific of phospholipids to the cytosolic f...

A: The plasma membrane, or the cell membrane, separates the interior of the cell from the outside envir...

Q: How is mass spectrometry used to identify proteins in a cell?

A: Mass spectrometry is the important method, which is used in mass determination of proteins and their...

Q: Name the reagent test for amino acids and proteins

A: Amino acids are the building blocks of proteins. The amino acid polymer which joins together with th...

Q: What is quorum sensing and how does it controlbioluminescence?

A: Bioluminescence is the process of generation and emission of light(chemiluminescence) by a living or...

Q: Why do diabetic patientsoften undergo dietary sugarrestriction? What are the maincomplications of di...

A: Diabetes is a disease that occurs due to the presence of high sugar in the blood or high blood gluco...

Q: When considering the levels of organization of the human body, which of the following choices repres...

A: The level of organization is important in higher animals. It ensures the proper division of labor am...

Q: What type of chemical bond forms between hydrogen and oxygen atoms within a water molecule? Which ty...

A: A water molecule has the formula H2O. It has a bent molecular shape and consists of two hydrogen (H)...

Q: Which pathogen is most likely to be treated with antibiotics?

A: Antibiotics are a particular type of medicine that helps stop infections caused by bacteria. They he...

Q: In general, fungi derive nutrients througha. photosynthesisb. engulfing bacteriac. digesting organic...

A: Fungi are the eukaryotic organisms that are unique because of the presence of chitin in their cell w...

Q: Assume that levi Fugate was not blue. What was only possible genotype ? why? Zachary fugate and his ...

A: A genotype is a person's assortment of qualities. The term additionally can allude to the two allele...

Q: What causes pus, and what does it indicate?

A: Immunity can be defined as the ability of the organism to resist against infections or diseases by t...

Q: what is length of chromosome 18 ?

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA....

Q: Treatment of a polypeptide by 2-mercaptoethanol yields two polypeptides that have the following amin...

A: Amino acids are the building blocks of proteins. The amino acid polymer which joins together with th...

Q: Question 2 Discuss how the gastric abnormalities contribute to vitamin B12 and iron deficiency and ...

A: The other name of the Vitamin B12 is the cobalamin, crucial for various body functions. Iron is a ch...

Tissue renewal

In multicellular organisms, tissue is a level of structure that consists of a group of physically and functionally identical cells and their intercellular substances. Unicellular organisms do not have tissues. Tissues are absent or poorly differentiated even in the simplest multicellular animals, such as sponges. However, more evolved multicellular animals and plants have specialized tissues that may organize and govern an organism's reaction to its surroundings. The word tissue is derived from the Latin word 'weave.' Plants and animals have various kinds of tissue systems that differ in their work and composition according to the different requirements.