The reason that x-rays show bones so well Ca it absorbs x-ray much better than surrounding soft tissue. Ca has much heavier nucleus than most elements of the body All O Ca have large percentage in bone O

Q: Starches with a branched structure are called O polymers O granules O amylose O amylopectin

A: Amylopectin  The non-crystallizable form of starch, consisting of branched polysaccharide chains. I...

Q: How does biological diversity relate to the characteristics of the abiotic factors of an ecosystem?

A: Introduction In this question we will discuss about how biological diversity relate to the character...

Q: To understand the genetic basis of locomotion in the diploid nematode Caenorhabditis elegans, recess...

A: Introduction Genetics is a branch of biology that studies genes, genetic diversity, and heredity in ...

Q: Explain the blunt-end fragments ?

A: Introduction A restriction enzyme, also known as a restriction endonuclease or restrictase, is an en...

Q: The principle of the alkaline method for plasmid DNA isolation is: O A. An acidic solution different...

A: Plasmid DNA isolation by alkaline lysis method This method is the most commonly used method to isola...

Q: For each species, all______ in the complete set of chromosomes is the____ . a. genomes; library c. m...

A: Chromosomes are the thread-like structures that appear during cell division.  

Q: In complementary base pairing which of the following base parings is incorrect? a. G-C b. G-T OC. A-...

A: ANSWER'- b) G-T  Explain;-G-T is incorrect pair. Base pairing happens between a purine and pyrimidin...

Q: The results of a paternity test using short tandem repeatsare listed in the table below. Who’s the d...

A: In the given example, we examine that there are two alleged fathers, along with the mother and the b...

Q: Some of the most common mutations associated with cancer are found in the small G protein Ras. Oncog...

A: "Genes" are the fundamental unit of heredity. They store genetic information in the form of DNA, whi...

Q: Why is leguminous crop rotation used in agriculture?

A: Introduction In this question we will discuss about why leguminous crop rotation is used in agricult...

Q: What is the importance of water, carbon and nitrogen for living organisms? Explain briefly.

A: There is wide diversity in living organisms in our biosphere. Are all living organism made up of the...

Q: the most common method of * indicating pressure in medicine is by the height of a column of mercury ...

A: A manometer is an instrument used to measure and indicate pressure, it is used for measuring the liq...

Q: Domestic cats and dogs and other domesticated animals have they shown any signs of evidence of evolu...

A: Domestication is an evolved trait in which animals are selectively bred and experience significant m...

Q: Linear eukaryotic DNA molecules have many origins of synthesis.   True False

A: In case of prokaryotes circular DNA present.  Prokaryotic circular DNA contain single origin for rep...

Q: why are gram-negative bacteria unevenly distributed on a slide? Why are gram negative bacteria unev...

A: Bacteria are the most abundant microbes found on the earth. The varied shapes, sizes and functions o...

Q: Which of the following is not a key property of hereditarymaterial?a. It must be capable of being co...

A: Introduction  DNA serves as the main genetic material in various organisms be it prokaryotes or Euka...

Q: What Data is included in a population pyramid, and what is the purpose behind the three groupings?

A: A population is defined as a group of individuals which can inter breed with each other and produce ...

Q: Explain Darwin’s hypothesis of evolution by natural selection

A: Introduction Evolution is the process of a species' features changing over numerous generations thro...

Q: In the scientific competition against fixism, what are the main arguments that favor evolutionism?

A: Introduction :- The theory of evolution is founded on the assumption that all species are connected ...

Q: QUESTION 2 The final step in gene expression is protein synthesis, or a. translation b. transcriptio...

A: Introduction :- The process of making protein molecules is known as protein synthesis. It includes a...

Q: Which of the following distinguishes axial filaments from flagella?   Flagella are short and axial ...

A: Axial filament and flagellum both help in locomotion. 

Q: of the following is a category covered in a standard code of ethics? A.O Bias B.O Observing C.O Comm...

A: Standard code of ethics is seen with confidentiality. Confidentiality is highly needed in the field ...

Q: Why there is no detectable fluorescence in the samples after the first few PCR cycles? O A. Because ...

A: To multiply the target DNA, the PCR processes of denaturation, heating, and elongation are cycled mu...

Q: Why are nematodes ubiquitous and numerous? What is the role of their cuticle in their  successful pr...

A: Nematode worms are among the most ubiquitous organisms on the earth and  They include free-living fo...

Q: . The production of pigment in the outer layer of seedsof corn requires each of the three independen...

A: Let Pr be purple, pr be red and acr be yellow. Part A. The phenotype of parent  P1 = AA CC RR prpr ...

Q: What is a genomic DNA library? A. All DNA fragments identified with a probe O B. A general collectio...

A: Genomic libraries are mostly used for the  sequencing applications. A genomic library contains all ...

Q: What is the hypothesized relationship between Specific Metabolic Rate and Osmotic Stress?

A: Metabolic rate is rate at which metabolism occurs in organism.

Q: Using analogy / comparative method, describe what the first hominin who moved out of the trees and o...

A: * Modern humans originated from Africa and evolved from recent common ancestor, Homo erectus. *It me...

Q: Do bacteria require telomerase? Explain why or why not

A: No, Bacteria do not require telomerase.

Q: Adrenaline is secreted to stimulate during cold exposure or during heat defense. vasodilation: vasoc...

A: Adrenaline, commonly known as epinephrine, is a hormone  that plays a role in visceral function regu...

Q: Can the amount of available energy on a given trophic level be larger than the available energy on l...

A: Introduction In this question we will discuss about whether the amount of available energy on a give...

Q: Can the amount of available energy on a given trophic level be larger than the available energy on l...

A: Answer 

Q: Color blindness is inherited in a(n)_____ pattern. a. autosomal dominant c. X-linked dominant b. aut...

A: Introduction:- Color blindness is the inability to distinguish between the three primary colours of ...

Q: If a mutation that inactivated telomerase occurred in acell (telomerase activity in the cell = zero)...

A: Telomers are the ends of the linear chromosomes.  

Q: The number of species on an island depends on the size of the island and its distance from a mainlan...

A: Species are groups of organisms that can interbreed and produce fertile progeny.  

Q: How will this modified cro protein interact with the three OR sites, and how would cro expression be...

A: Bacteriophages are viruses that infect bacteria. Like other viruses bacteriophages are also made up ...

Q: In 2008, a DNA technology company, Florigene, Ltd. a Japanese subsidary from Australia claimed the p...

A: Option 4 i.e a transgenic organism was developed.

Q: Describe the various post-translational modifications of HIF- 1alpha and how it affects the regulati...

A: Describe the various post-translational modifications of HIF- 1alpha and how it affects the regulati...

Q: What are helicases and topoisomerases?

A: Enzymes are the proteins present in the cells and have catalytic powers.  

Q: 1. An albino man whose parents are both normal marries a woman one whose parents is normal and the o...

A: Introduction Albinism is an inherited condition that leads to someone having very light skin, hair, ...

Q: is the collective term for actin and myosin. sarcomere O myofibrils O muscle hiber O skeletal muscle

A: The basic contractile unit of muscle fibre is the sarcomere. Actin and myosin are the active compone...

Q: What would happen if, in the course of replication, thetopoisomerases were unable to reattach the DN...

A: DNA is a double helix molecule.

Q: Miguel went to the dentist, who performed a procedure that eliminated his tooth pain. The next time ...

A: There is a relationship between the stimulus and the behaviour. Our behaviour can change according t...

Q: the treatment that utilizes transgenic organisms to mass-produce proteins O stem cell therapy O gene...

A: Recombinant DNA technology plays a major role in modifying the genetic setup of an organism to have ...

Q: A. Part 1: F1 Generation Yellow Sampaguita- Homozygous recessive (cc) White Sampaguita- Homozygous...

A: Introduction: Dominant allele is able to express itself even in the presence of its recessive allele...

Q: Discuss the 4 components of Medicare. Where are these 4 components applicable and why is it importan...

A: There are 4 parts of Medicare:- Part A, B, C and D Part A:- In Patient/ Hospital Coverage Part B:- ...

Q: Which of the following are incapable of undergoingmitosis?a. osteoblasts and osteoclastsb. osteocyte...

A: Introduction: Bone tissue is composed of four types of the cells which are osteocyte, osteoblast, os...

Q: What is the carbon cycle?

A: Introduction Living organisms have an impact on the carbon cycle, which represents the circulation a...

Q: Oldowan stone tools are mostly associated with Homo heidelbergensis Group of answer choices True Fal...

A: Introduction: Evolution is the change in the inherited characteristics of biological populations ove...

Q: G6PD deficiency is an X-linked recessive disorder. When people who have this disorder eat fava beans...

A: An X-linked trait is regulated by the genes present on the X chromosomes.