Elaborate how cryoprotectant protect cells from freezing injury.

Q: Homologous structures among major groups of organisms may differ in_____  a. size c. function b. sha...

A: Evolution is defined as the process by which opportunities arise within an individual over a period ...

Q: Why do multicellular eukaryotes need to have hundredsof kinase-encoding genes?

A: Gene expression in  eukaryotes are highly responsive to the outer environment.  The large eukaryotic...

Q: How is blood typing for the ABO system and the Rh usually done?

A:  Blood Groups Transfusion or intravenous injection of citrated blood often lead to diasterous result...

Q: Distinguish between divergent and convergent evolution.

A: Convergent evolution and divergent evolution provide evidence for evolution that has taken place ove...

Q: Describe how the increase in oxygen affected the existingorganisms and how it set the stage for the ...

A: ANSWER:  During the late Proterozoic era, i.e between 700-550 million years ago there was a sudden s...

Q: In vitro translation systems have been developed inwhich specific RNA molecules can be added to a te...

A: DNA (deoxyribonucleic acid) is first transcribed to form mRNA (messenger ribonucleic acid) which is ...

Q: Among all the Theories of Lamarck and Darwin, which one is the most sensible? Explain why.

A: The three basic components of Charles Darwin's theory of evolution were 1)variation happened randoml...

Q: What are possible  gametes of a heterozygous  round yellow parent  R (red) r (brown) Y (pink) y ( gr...

A: Gamete It is a sex cell, a haploid egg or sperm. It is one of the differentiated cells that is a pro...

Q: Why is it important to determine the blood types of the donor and the recipient in transfusions?

A: Introduction In this question we will discuss why it is important to determine the blood types of th...

Q: Protocols for analysing DNA

A: *DNA can be analysed through  Polymerase chain reaction Short tandem repeat analysis Y chromosome a...

Q: Gibbons are knuckle-walkers when on the ground. True or False

A:

Q: The enzyme tryptophan synthetase is produced in two sizes, large and small. Some mutants with no enz...

A: Mutation is defined as the change in the sequence of nucleotides or the structure of chromosome wher...

Q: Below is a list of molecules with different chemical characteristics. Knowing that all molecules wil...

A: Introduction :- Estrogens are a class of hormones that play a critical function in women's sexual an...

Q: 41) In a bacterial cross in which the donor (Hfr) is a+b+ and the recipient strain (F-) is a-b-, it ...

A: D) Will all be a+b+ Explain;- The formation can be characterized as the course of transmission of qu...

Q: Use examples to describe some applications of phylogeny.

A: The study of the classification of living forms is known as systematics. Systematic biology is the s...

Q: What do you think is the most important type of variation and why? (Choose only one - Morphological,...

A: Answer 

Q: The action potential is split into 4 parts (A-D). For each part, 1. Describe what stimulated the cha...

A: An action potential is sudden and fast change of the resting membrane potential which propagates thr...

Q: Oligodendrocytes and Schwann cells generate a fatty substance known as a. glial. c. myelin. b. soma....

A: Oligodendrocytes and Schwann cells (or neurilemma cells) are the non-neuronal cells of the nervous s...

Q: Question 3 What type of selection occurs when one extreme population phenotype is favored? stabilizi...

A: Natural selection is defined as a process or force that allows organisms to better survive and produ...

Q: Question 37 Which theory of plant senescence is based on the functions of cytokinins? O A. Mutation ...

A: DISCLAIMER : Since you have asked multiple question, we will solve the first question for you. If yo...

Q: Stromatolites form a variety of morphologies with specific characteristics, including which of the f...

A: stromatolite is alayered deposit in mainly of limestone that is  formed by the growth of blue-green ...

Q: Which of the following is an example of fungus-like protist? Group of answer choices golden algae rh...

A: Kingdom protista comprising of unicellular, eukaryotic organisms that have features similar to those...

Q: Based on Figure 9-19, can you predict the position of amutation that would affect the synthesis of o...

A: Mutation Are changes in the sequence of DNA.  It can occur as a result of DNA copying errors during...

Q: 3. Cross a homozygous Blue Parakeet with a homozygous Yellow Parakeet. What is the genotype and phen...

A: Genetics is a branch of biological sciences that studies genes, genetic variation, and heredity in l...

Q: Please answer fast why do some cells lose their alkaline phosphotase and others have more in the ki...

A: Alkaline phosphatase is a cell injury marker it signifies any pathology which changes the cellular a...

Q: A diploid cell has 4C genetic material and 16 chromosomes at the start of cell division. Identify th...

A: Every cell divides to form daughter cells through a process called as cell division . There are two ...

Q: What is the process in which organisms with favorable and desirable inherited traits are more likely...

A: Organisms in nature have the tendency to produce offspring at a geometric rate. However, the populat...

Q: SCIENCE

A: Dactylography is study of fingerprint , use this is  important method of forensic science. Moisture ...

Q: The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the correspo...

A: Natural selection is the mechanism of adaptation and modification of populations of living creatures...

Q: 40. The process of removal of redundant synapses that results in a streamlined process of rapid cogn...

A: A) Cellular differentiation:- It is a process through which cells acquire different structures and f...

Q: Which of the following is FALSE regarding interphase? O interphase is the longest phase of the cell ...

A: Cell division is of two types: Mitosis Mieosis

Q: plates normally show a 10-fold decrease in colony number through the dilutions, e.g. 500 on Plate D,...

A: Serial dilution is a process to make culture more concentrated for examination.  This is majorly don...

Q: Mitosis differs from meiosis in that only mitosis: O is preceded by interphase involves two successi...

A: Introduction: Cell division is the means of reproduction in which all cells need to copy their chrom...

Q: Enumerate below the strengths and weaknesses of the two Theories of Evolution.

A: Evolution is a steady phenomenon which transform life from simple to much complex . There are basica...

Q: significant databthat we can obtain from grasping ideas from the connectuon of extinct organisms to ...

A: When a species becomes extinct, scientists refer to it as such. Extinction aids in the development o...

Q: Oxygen is the final electron acceptor in the electron transport chain. However, in the absence of ox...

A: Introduction: The reactions which help in converting pyruvic acid to carbon dioxide and water in mit...

Q: Castrated boar will help to detect which sows are in heat? True or False

A: Introduction Castration is the removal or inactivation of the testicles of a male animal and Castrat...

Q: Zhoukoudian Cave provides clear evidence that Group of answer choices A: Homo erectus ventured as fa...

A: * Zhoukoudian cave present in  Zhoukoudian village of China. * Homo erectus are found in commonly kn...

Q: 3. Write down the corresponding amino acids sequence for each mRNA sequence. Use the codon chart in ...

A: Question 3 A) TAC CTA GCG CAC ATG TAG GTG GGC AAA GTT  m-RNA sequence: AUG GAU CGC GUG UAC AUC CAC C...

Q: Transfer of immunoglobulins from mother to child during breastfeeding can protect the child from dis...

A: Answer Naturally acquired passive immunity

Q: A heterozygous brown bull mates with a white cow (brown is the dominant trait). What are the expecte...

A: Introduction: A monohybrid cross is a genetic collaboration of two different alleles which has homoz...

Q: An organism’s relative fitness is measured by its ______. Group of answer choices Mutation rate Gene...

A: Relative fitness: A measurement of biological fitness in which a genotype's or phenotype's reproduct...

Q: 1. Using the food label shown, how many calories are in 1 s serving ? ( #fat g x 9cal/g) + ( #carb g...

A: The nutrient label shows you a few key supplements that help your wellbeing. You can utilize the lab...

Q: than ventricular pressure while semilunar valves are open ventricular pressure is greater than atria...

A: 1.Ventricular pressure surpasses arterial pressure as the ventricles contract, the semilunar valves ...

Q: Immature B cells can drive strong adaptive immune responses by maturing into _______. Group of answe...

A: There is some information about B cells ; B cells are at the centre of the adaptive humoral immune s...

Q: TELOPHASE This stage shows the end of Telophase AFTER cytokinesis has occurred • Nuclear membrane re...

A: Mitosis: Also called equational division since, at the last stage of the cell cycle, 2 daughter cell...

Q: Use examples to explain the difference between analogousstructures and homologous structures.

A: Evolution is defined as the process by which opportunities arise within an individual over a period ...

Q: a. In fruit flies, gray is dominant over black. If a purebred gray fruit fly crosses with a black fr...

A: Dominant and recessive are the two types of trait that express themselves at different gene level. 

Q: Kinesiology: What is the name of the technique of pushing both sides of the body or limb toward the ...

A: "Regular exercise" can benefit our performance and lower our chance of acquiring diseases such as ty...

Q: Determine the Evolutionary Relationship of Human to Other Primates and Vertebrates using a Phylogene...

A: The pattern of branching in a phylogenetic tree reflects how species or other groups evolved from a ...

Defense Mechanism

Circumstances influence and compel people to behave in a certain way. One such behavior is a defense mechanism. It is employed by people to escape from unpleasant circumstances, thoughts and actions. Defense mechanisms are, thus, psychological strategies that help to avert and avoid unwanted feelings such as guilt or shame and situations such as threat and danger.