Rackei

Q: how do amino acids, monosaccharides, glycerol, fatty acids, electrolytes, and water from substances ...

A: Proteins are made up of amino acids, which are organic compounds that bind to form proteins. The bui...

Q: What occurs in the Calvin Cycle?  How is the Calvin Cycle connected to events in Photosystems II and...

A: In Calvin cycle (Dark reaction or reductive pentose phosphate cycle or C3 cycle), carbon dioxide is ...

Q: What signals are sent around the body of a sprinter when he or she is about to start? Start with the...

A: The loud sound or gunshot is made to signal the runner. We know that the nervous system comprises of...

Q: What is the cross of the following, and get the PR and GR of the results. What is the lowest term  1...

A: Ans: Phenotypic Ratio (PR): It is the probability of outcomes found in organisms offspring. The obse...

Q: How is oxygen efficiently transferred from mother to fetus?

A: Ans: The oxygen required for normal functioning of the body in all living individuals and for fetus ...

Q: Horns Poll beef cattle of European ancestry, the trait of having horns or being polled (no horns) is...

A: According to Hardy weinberg equilibrium p2+q2+2pq=1 and p+q=1 p = frequency of the dominant allele i...

Q: Describe the endocrine functions of the gonads and placenta.

A: The gonads, the essential conceptive organs, are the testicles in the male and the ovaries in the fe...

Q: Discuss why it’s not possible to hold your breath for more than a minute or so.

A: The process in which the air moves inside and outside of the lungs is called breathing. The process ...

Q: Please help urgently

A: Extracellular Matrix is not part of a cell it is the surrounding and space present around the cell. 

Q: Name two ways in which meiotic cell division creates genetic diversity, and explain how each occurs.

A: Meiosis is a cell division that lessens the number of chromosomes in the parent cell by half and cre...

Q: What are the major risk factors for DVT?

A: Deep vein thrombosis (DVT) happens when blood coagulation (clots) structures in at least one of the ...

Q: Explain why mutations that alter hormone receptors can influencethe response to a hormone.

A: The endocrine system is the chemical signaling system that uses blood vessels as information channel...

Q: What are Neurons?

A: Ans: Neuron: The brain has working unit which is important in transmittance of information to nerve ...

Q: How does speed, color, and size variations could help in the survival of an organism?

A: The survival of an organism refers to its ability to adapt, feed, thrive and reproduce in an environ...

Q: Penetrance and expressivity are related but can be distinguished easily because:     penetranc...

A: Answer: PENETRANCE = It is the expression of a particular phenotype , which corresponds to a particu...

Q: Explain the relationship between genes and cancer ?

A: Cancer alludes to any of the countless infections described by the advancement of unusual cells that...

Q: What are fad diets designed to do? Why are most of them not sustainable?

A: Some diets may be suggested in special situations, many of thes may lack vital nutrients like dietar...

Q: Out of the processes of osmosis, simple diffusion, anti port and synport: which one requires energy,...

A: In this question, we have to find that out of the processes of osmosis, simple diffusion, anti port ...

Q: If a single strand of a gene contains 678 bases, how many amino acids result in the polypeptide prep...

A: The biochemical substance that is carried from the preceding generation to the succeeding generation...

Q: Seedless Plants   Mosses and Other Bryophytes Write True if false 1.  Mosses and their relatives be...

A: The plants are formed of roots, stem, leaves, fruits and flowers. The conduction system in plants is...

Q: Biology Question

A: The given picture shows a leaf. Leaf is composed of a leaf blade, petiole, leaf veins and Venelets. 

Q: In bronchioles, dilation is achieved through the action c O Carbon dioxide O Histamine Sympathetic n...

A: Lungs are the respiratory organs which receive oxygen from the environment and supply the oxygen to ...

Q: Based on this video https://www.youtube.com/watch?v=rKng5-ij6kQ Provide a schematic diagram for the ...

A: Seliwanoff’s test allows the distinction between ketose and aldose sugars. The sugar molecules conta...

Q: What does a high Vp and a low Vg tell us? Select "yes" for all that apply, otherwise select "no". Th...

A: VP represents the phenotypic variance, VG represents the Genetic component and VE represents the env...

Q: Water moves via osmosis _________.a. throughout the cytoplasmb. from an area with a high concentrati...

A: Ans: Osmosis: The movement of water or solvent via semipermiable membrane from region of low solute ...

Q: Review the major types of autoimmune diseases and the adverse medical eff ects they have.

A: An Autoimmune disease is a medical condition which occurs because of the abnormality in immune respo...

Q: Name the layer and sublayer of the alimentary canal wall that houses the capillaries into which nutr...

A: There are four major layers present in the alimentary canal:- 1. Serosa 2. Muscularis 3. Sub mucosa ...

Q: Compare and contrast the juxtamedullary nephron andcortical nephron.

A: The nephron is the basic functional and structural unit of the kidney. It consists of the renal corp...

Q: Secondary sex characteristics of females are stimulated by:       a. aldosterone.       ...

A: At puberty, there are certain changes that develop within the body of a girl or boy. This occurs in ...

Q: The cells that secrete surfactant into the alveolar space are O Type Il alveolar cells O Endothelial...

A: Surfactant  is defined as the lipoprotein (mixture of lipid and proteins) comprised of some componen...

Q: Describe the appearance and composition of chromatin and the structure of nucleosomes. Comment on th...

A: Answer- Chromatin is uncondensed genetic material which is present in the nucleus most of the time a...

Q: Part of cell division is that chromosomes are moved the center of the cell and then back to the pole...

A: Part of cell division is that chromosomes are moved the center of the cell and then back to the pole...

Q: What do you mean by DNA Repair and Recombination?

A: Introduction  DNA is highly prone to mutations too which can be either spontaneous or can be caused ...

Q: Extranuclear inheritance often correlates with maternal inheritance.Even so, paternal leakage may oc...

A: The Paternal mitochondria found in the sperm cells of sexually reproducing organisms is decomposed a...

Q: Define the term Somatic sensation?

A: The somatosensory system functions to determine the activities occurring inside and around (environm...

Q: In response to an allergic reaction your body releases histamine into the blood stream. One of the c...

A: Neurotransmitters are the chemical molecules that help in the transmission of information from one n...

Q: а. a chart that shows the combinations (results) for a cross b. a picture (diagram) that shows genet...

A: Answer: GENETICS is the study of genes , hereditary and variations from generation to generation.

Q: Colored aleurone in the kernels of corn is due to the dominant allele R. The recessive allele r, whe...

A: Gene is a nucleotide sequence that forms the basic unit of heredity. An allele is a variant form of ...

Q: In a sentence or two, either support or refute the following statement: The pollen grains of angiosp...

A: Angiosperms are the flowering and fruit plants in which the pollen and egg cells are produced by flo...

Q: The restriction enzyme BamHI recognizes the sequence GGATCC and cuts the DNA between the two G’s. Gi...

A: Ans: Restriction enzymes: The enzymes which cuts the DNA at specific site and used in cloning is ref...

Q: In a cross between two, dihybrid, heterozygous individuals, what fraction of the offspring will be d...

A: dihybrid organism is one that is heterozygous at two different genetic loci.

Q: The sequence of events that occurs as the breathing rate is increased is A) 5,3,1,2 and 4 B) 3,5,2,...

A: Answer: BREATHING = It is the process of uptake of oxygen and release carbon dioxide from the lungs,...

Q: Slect true or false for each

A: Genetic drift  It is a process of evolution where the frequency of allele of a population over time....

Q: Explain the difference between a vitamin and a mineral inthe diet

A: Vitamins are natural organic molecules that are required by the body in small quantities. Minerals a...

Q: What is Celexa ?

A: Any abnormal condition that hinders normal body functioning is considered a disease. Nutrient imbala...

Q: Biology Question

A: Pedigree analysis is study of any kind of population and its progeny data of several generation of a...

Q: In Pansies, two genes, B and D, control the synthesis of the pigments in flower petals. The biochemi...

A: The genes are the hereditary unit of an organism which are passed on from the parental generation to...

Q: Describe several ways that algae are important microorganisms.

A: Every biological organism plays important role in the environment. These organisms contribute their ...

Q: During a histological examination of muscle tissue you see a cell that is striated. You determine th...

A: The cell is the basic building block of life. Cells that are similar in function, are arranged toget...

Q: Which of the following would you not expect to find in a human erythrocyte? O Band 4.3 Spectrin Acti...

A: Human Erythrocytes or RBCs are red blood cells present in the blood. Their basic function is the tra...