Q: Some people declare that we shouldn’t worry about endangered species because extinction has always o...
A: Endangered species are those that are thought to be in grave danger of extinction in the wild. Emerg...
Q: A deer eats 25kg of herbaceous material per day. The herbaceous material is approximately 20% dry ma...
A: This food chain is an open system because this food chain exchange energy and with its surroundings.
Q: 1. After exposure to a mutagen an A-T base pairing becomes T-A in the daughter cell. This is an exam...
A: Please note, keeping with the site regulations and in order to provide accurate and detailed answers...
Q: The part of the neuron that is usually a single lorg extension that conducts an impulse to a muscle ...
A: Neuron is the nerve impulse producing and transmitting cells in the nervous system. They have the ca...
Q: Which of the following statements is most likely behaviorally when applied to a male primate with a ...
A: Introduction: When male and female individuals are distinguished externally, the phenomenon is calle...
Q: Suppose you discovered protein X that functions in the ER. You then discovered that protein X requir...
A: Introduction : mRNA is formed form DNA by transcription process into the cell nucleus. Then mRNA mo...
Q: How do we know that members of the human lineage used to have an opposable toe on their foot?
A: There was a fossil discovered some years back in Ethiopia which led us to draw a conclusion that hum...
Q: 5. Why do you think you feel tired and lethargic when you have a high fever?
A: Humans have evolved to develop body's responses and especially immune responses in such a way that k...
Q: In what ways are Leishmania and Trypanosoma similar with each other?
A: Leishmania is an intra cellular protozoan which is known to cause Leishmaniasis and Trypanosoma cruz...
Q: 1: Where was the Nariokotome Boy Found? How long ago did he live? How old was he? 2: What species do...
A: Nariokotome Boy or Turkana Boy:- About 1.8 million years ago, a boy died and this specimen is the mo...
Q: What will guide them to make the right decision? Do they have a choice?
A: Answer: 1.trophobalst or icm if cells choose to become they will end up in the placenta and if they ...
Q: At each origin of replication, DNA synthesis proceeds bidirectionally from two replication forks. Wh...
A: Introduction The process of replicating a double-stranded DNA molecule into two identical DNA molecu...
Q: Explain the concept of electrophoresis.
A: Introduction Genetic engineering is the process of altering an organism's genetic makeup using recom...
Q: Q6.1. What is the founder effect? Sampling error that occurs during the establishment of a new popul...
A: Introduction :- The founder effect is the loss of genetic variation that happens when a new populati...
Q: How are enzymes classified? What are the different classes of enzymes?
A: Enzymes are biocatalyst that is proteinaceous in nature and perform a specific type of chemical reac...
Q: Two albinos marry and have four normal children. Howis this possible?
A: Introduction Albinism is a genetic condition that causes a person's skin, hair, and eyes to be excee...
Q: _1. It is the important organ that controls thought, memory, emotion, touch, motor skills, vision, b...
A:
Q: What happens to the prey species when the predator species population increases? Why? What happens t...
A: Introduction: • An animal that is hunted and killed by another animal known as predator for food is ...
Q: Which of the following results in green output in spectrophotometry experiment? a. Violet light b....
A: Spectrophotometry: it is used for quantitative analysis of spectra of various wavelengths to compare...
Q: Which of the following is NOT one of the roles of algae in nature? O a. Petroleum is the fossil rema...
A: Introduction : Features of algae : Body is relatively simple unicellular or multicellular thallus ...
Q: The dinosaurs died out______ million years ago
A: Introduction:- Dinosaurs are a diversified group of reptiles that dominated Earth's terrestrial life...
Q: What are the typical features of the age pyramids of underdeveloped countries?
A: Introduction I'm this question we will discuss about the typical features of the age pyramids of und...
Q: you were trying to locate where a gene resided on a chromosome, you would be looking for the gene's ...
A: Phenotype is the expressed character trait of an organism Allele is the genetic equivalent of a trai...
Q: Provide a description of the plant cell of plastids in leaf of Hydrilla observed under high power ob...
A: Hydrilla is a hardy, fast-growing perennial with long, slender stems that can reach a length of 7 me...
Q: 26.With regard to cell signalling, which of the following do not represent exogenous signals? A. ...
A: Note: As per Bartleby Guidelines For Remaining Answers Please Repost The Question. Introduction: Cel...
Q: Question: How has having an opossable time thumb helped primates, especially humans to adapt to th...
A: Having an opossable time thumb helped humans especially to adapt to their environment and better su...
Q: Give and explain each of a health promotion program or intervention about access of clean and safe d...
A: Diarrhea, typhoid and cholera are the diseases that can be caused due to bacteria. This diseases are...
Q: 9% of the individuals suffer from a disease caused by a recessive allele (aa). Calculate the frequen...
A:
Q: The energy available to do work in a cell is called: a. thermal energy b. potential energy c. ...
A: Introduction : thermal energy - every objects has thermal energy. It's the movement of molecules w...
Q: how many cells does Archaebacteria have
A: * Archaebacteria are prokaryotes thought to be bacteria. *They have a unique ribosomal RNA type. *T...
Q: Determines the order of the four chemical building blocks - called "bases" - that make up the DNA mo...
A: A nitrogenous base is a molecule with the chemical characteristics of a base and contains nitrogen. ...
Q: Explain the use of a probe in screening a DNA library
A: Introduction: Probes are the small DNA or RNA strands that are used to label DNA. The labeling of DN...
Q: Which technique/s is/are used in DNA probe development? O CRISPR O ONA profiling OPOR O DNA recombin...
A: PCR Species-specific probes have been developed. For example, specific DNA fragments specific to A....
Q: What is the purpose of using an “outgroup” when reconstructing a phylogenetic tree
A:
Q: Klinefelter syndrome (XXY) can most be easily diagnosed by_______ . a. pedigree analysis c. karyotyp...
A: Introduction:- Klinefelter syndrome (KS) is a hereditary disease in which a male's genetic code cont...
Q: 22
A: Motor neurons are components of peripheral nervous system which conduct efferent impulses from the s...
Q: Compare the functions of statocytst, semicircular canals, uticle and saccule
A:
Q: H* ions generated by reactions in the electron transport chain, as well as H* ions present in the ma...
A: Introduction : In electron transport chain 4 protein complex create electrochemical gradient to pro...
Q: If the purity of DNA sample is below 1.8 A260/A280, where did the protein contamination come from?
A: The absorbance ratio at 260 nm & 280 nm is used to determine the quality of DNA & RNA. A ra...
Q: Explain about the following picture, which represents the heart
A: The given picture is a Histology slide of a Cardiac muscle.
Q: In roses, the synthesis of red pigment is produced by two steps in a pathway. gene O magenta interme...
A: Null mutation :- This mutation is type of loss of function mutation, in this mutation the product ma...
Q: embryological explanation why The dorsal mesocardium is a ventral mesentery
A: Mesentery: The mesentery is a human organ that connects the intestines to the posterior abdominal wa...
Q: Instructions: have a look at “Figure 2.pdf”. This shows a diagram mapping the Arabidopsis Rab protei...
A: There are few general points that should kept in mind . these are as follows: About Arabidopsis ...
Q: What is myocardial infarction (a heart attack)?
A: A muscular organ in most animals that pumps blood through the blood vessels of the circulatory syste...
Q: You are spending a summer in Austria following up on some of Mendel's work. You are studying the inh...
A: Let the allele causing colour be R/r Hence, genotypes of Red colour (dominant):- RR, Rr Genotypes of...
Q: Some protozoan pathogens form ________ to protect themselves from harsh conditions in the environmen...
A: The protozoa are the single celled eukaryotic organisms that are mostly parasitic in nature. They ar...
Q: Receptors for the general senses are O limited to the head. O found only in the brain and spinal cor...
A: The general senses are pain, temperature, touch, pressure, vibration, and proprioception, simply it ...
Q: What is an aliquot? Give two uses of serial dilution.
A: Introduction: Serial dilution is a series of repeated dilution performed on the same solution to cha...
Q: Skeletal muscles move as coordinated by the nervous system. sympathetic somatic O peripheral O auton...
A: Skeletal muscles/Voluntary muscles Transverse lines are found at regular intervals. Hence these mus...
Q: Human somatic cells have 46 chromosomes. Are the cells different in any way from the parent cell and...
A:
Explain Darwin’s hypothesis of evolution by natural selection
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