A. Draw and label the histological structures of enamel listed below: Enamel Lamellae Enamel Tufts Enamel Spindle

Q: What roles do microtubules play in movement by cilia and flagella?

A: Cilia and Flagella are dynamic cytoplasmic filamentous structures that protrude through the cell wal...

Q: The image depicts indole results on SIM agar for Sulfur Reduction Please help me to figure out its p...

A: Introduction:  SIM medium js used to test three things as the name suggests. These include Sulfur Re...

Q: Is zygote a living being? Discuss it in the sense of the properties of life. Be specific.

A: In case of sexually reproducing organisms the zygote is developed by the fusion of male and female g...

Q: Define the Regulation of gene expression in bacteria

A: Genes can be found in all cells. Genes are the carriers of information on hereditary material. The D...

Q: How does the nucleus contribute to maintaining homeostasis for the cell?

A: *Homeostasis is the maintaining the constant internal body temperature or environment. *Nucleus will...

Q: Which of the following is the deadliest genotype for the Tay Sachs allele? O t O Tt O TT

A: Tay-Sachs disease or TSD is a lysosomal storage disorder. The cause of this disorder is a mutation i...

Q: Carbon is able to form an immense diversity of organic molecules because of carbon's O tendency to f...

A: With 4 valence electrones, carbon can form 4 covalent bonds with variety of atoms. This ability make...

Q: b. all of their children have porphyria pologi 1 no mol molOu 1 malo with pornhuria

A: Answer - {b} all of their children have porphyria. 

Q: 2. A woman has blood-types A and M. She has a child with blood-types O and M. The following men, hav...

A: The ABO and MN blood group system is based on the presence of specific antigen on the plasma membran...

Q: Which of the following describes the difference between genetic maternal effect and cytoplasmic inhe...

A: Maternal is a term related to the mother. 

Q: Why can wet soils occur both near the equator, where rainfall is high, and at high latitudes, where ...

A:  wet soils occur both near the equator, where rainfall is high, and at high latitudes, where rainfal...

Q: One form of male sterility in corn is maternally transmitted. Plants of a male-sterile line crossed ...

A: Genetics or hereditary qualities is the investigation of genes and heredity of how certain character...

Q: Effects of GSI on NOTCH1 and NICD1 expression?

A:

Q: Cooking is a singularly human trait. Whether the food is baked, fried, sautéed, boiled, or grilled, ...

A: Most of the bacteria are present on the raw food, specially on meat, Cooking causes the proteins pre...

Q: The ulnae of victims of the Colorado cannibal, Alferd Packer, exhibited perimortem cuts on their out...

A: Forensic anthropology is a branch of anthropology that deals with using bone analysis and archaeolog...

Q: Starch and Cellulose. Which one can be hydrolyzed by you and most mammals? Why? Also, discuss the r...

A: Introduction :- Starch is a polysaccharide made up of 1,4 connections between glucose monomers. The ...

Q: How Does the Immune System Respond to a Changing Pathogen?

A: The antigen is a foreign material, such as a toxin, bacteria, or virus, that, when invading the body...

Q: Read the following extract: “Atmospheric ions are electrically charged particles which occur natura...

A: Small particles can be found in the states of matter. These particles are too tiny to be seen with t...

Q: What advantage do fluorescent dyes and fluorescence microscopy provide in comparison to the chemical...

A: Microscope is the widely used laboratory instrument in the molecular biology, it is mainly used to e...

Q: need to understand how to know which is 5' overhand and which is 3' overhang

A: EcoRI is a restriction enzyme-producing sticky ends. It identifies the specific sequence GAATTC on s...

Q: A nonsense mutation Select one: a. results in a larger protein being produced from the mutated gene ...

A: Introduction :- There are a number of disorders known to be caused by nonsense mutations, including:...

Q: ow do bacteria reproduce and transfer genetic materials?

A: Genes are the smallest and most fundamental unit of heredity since they convey genetic information e...

Q: Identify the demographic transition stage for a country that has an age structure consisting of a la...

A: Demographic : It is the statistical characteristics of human population or related to the structure ...

Q: Which of the following best states a condition which promotes natural selection of a species? Group ...

A: Natural selection is a process through which the population of living organisms adapt and change. Fo...

Q: Darwin expressed that there was a force in nature that worked like an artificial selection. How is a...

A: Natural selection is a process which take place during course of evolution and and it is long proces...

Q: What are the advantages and disadvantages of using the Hanging drop technique?

A: Hanging drop technique It is a method used for the examination of living, very small organisms. It i...

Q: Why is it crucial to understand and learn the anatomy and properties of grains?

A: Grains are the seeds of grasses, and the major grains include corn, wheat, rice, and oats. Others in...

Q: Cells can make the non-essential amino acids. To do so, they need a specific enzyme. Which of the fo...

A: Introduction :- Tissue growth and repair, immunological function, red blood cell creation, and hormo...

Q: DNA polymerases used in PCR

A: The polymerase chain reaction (PCR) is a method for rapidly producing millions of copies of the desi...

Q: A female Australian shepherd with droopy ears (dd) and grey spotting (ss) is mated to a male dog wit...

A: The genotype is the genetic makeup of organisms which is represented by the combination of two allel...

Q: In a parental cross of a ADHL disease trait, where the father is affected and the mother is unaffect...

A: ADHL disease is a autosomal dominant trait  

Q: What are the anatomical advantages for simple animals in the chordata phylum?

A: There are four anatomical advantages for simple animals is that, when taken together, set chordates ...

Q: Fill in the blanks and elaborate each answers.

A: Living organisms, which include humans, animals, plants, algae, fungi and other microorganisms repro...

Q: Is zygote a living being? Discuss it in the sense of the properties of life.

A: Zygote It is the cell resulting from the fertilization of a secondary oocyte by a sperm.  The secon...

Q: What is the major trade-off plants face when they undergo photosynthesis?

A: In the process of photosynthesis, plants take in carbon dioxide and water from the soil and air drop...

Q: Give one effect of the following problems encountered in Histotechnique. a. Insufficient clearing b....

A: Microtomy is a method  which is used for cutting very thin section of hard tissues and bones . It ta...

Q: Nucleus -Barr bodies The figure represents the stained nucleus from a cheek epithelial cell of an in...

A: Barr body: it is defined as a condensed X chromosome which is stained densely and inactivated. It is...

Q: WHAT IS THALIDOMIDE AND ITS USES

A: Thalidomide was invented by CIBA, a Swiss pharmaceutical company, in 1953 and introduced by Chemi Gr...

Q: what are the genotypes of the offspring?

A: Genetics is a branch of biology that tells about genes, genetic variation, and heredity in living th...

Q: When is having a homozygous dominant genotype for Tay Sachs harmful? O When tuberculosis is widespre...

A: Tay sachs Disease: It occurs when a child inherits a flaw in the HEXA gene from both parents. The ge...

Q: can a person with O+ blood have two parents with O- blood? Explain

A: The classification of blood into  plant A, B, AB and O  groups,  depending on the presence and absen...

Q: Some strains of bacteria or microorganisms have developed toxins that can modify the activity of the...

A: Adenylyl cyclase It's the enzyme that converts adenosine triphosphate (ATP) to cyclic AMP (cAMP). Cy...

Q: Describe four ways that enzymes speed reactions.

A: Enzymes can be defined as biomolecules produced by the living organism which functions to catalyse a...

Q: What is antihistamine drugs ?

A: A chemical substance utilized in the treatment, cure, anticipation, or finding of illness or used to...

Q: 2. An onion cell (2n) with 10 autosomes and 2 sex chromosomes is about to undergo meiosis. How many ...

A: An onion is a multicellular plant organism (one with many cells). An onion peel cell has a cell wall...

Q: What is the composition of mesenchyme, and what is its function?

A: Introduction: The extracellular and cellular components, as well as their functions, determine the c...

Q: What are the advantages of the cyclical nature of the seminiferous epithelium and the wave-like arra...

A: The seminiferous epithelium refers to all the cellular interactions that occur between Sertoli cells...

Q: Why do land plants have stomates (sometimes called stomata)? a. To allow plants to take in carbon di...

A: Introduction:- Stomata are small holes on the leaves that play an important role in gas exchange. Ca...

Q: How haploid plants can be obtained? List the names of methods

A: Introduction: Haploid plants have been a important assets of genetic studies and plant breeding. Hap...

Q: The molecule below is a monomer of

A: Monomers are the molecules, which can join with other similar molecules to form very large molecules...