Cyanobacteria have been engineered to produce isobutanol directly. What advantage does this have over other alternative biofuels? a. It is an inherently renewable fuel source. b. Multiple processing steps can be avoided. c. They produce chemical energy through photosynthesis. d. They make a biofuel alternative to gasoline.

QUESTION POSTED AT 18/01/2020 - 05:29 AM

Answered by admin AT 18/01/2020 - 05:29 AM

The correct answer is (b.) Multiple processing steps can be avoided. The cyanobacteria have the advantage to avoid multiple processing steps compared to the other alternative biofuels that are used. The cyanobacteria is a phylum of bacteria that is made to obtain energy from photosynthesis. 
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Related questions

In pea plants, yellow (Y) seed color is a dominant trait, and green seed color (y) is a recessive trait. Which resulting plant with yellow seeds could produce a plant with green seeds in the next generation? A. YY B. Yy C. yy D. Yg

Answer: The correct answer is-

B. Yy

As per the information in the question,  yellow (depicted by Y allele) seed color is a dominant trait whereas green seed color is a recessive trait ( depicted by y allele).

A dominant trait always masks the expression of a recessive trait.

Presence of single dominant allele ( such as in Yy, which shows heterozygous dominant genotype) in the genotype can produce a dominant trait whereas recessive trait is only expressed when its genotype is homozygous recessive (such as yy that is both alleles should be recessive allele) .

A plant with genotype Yy will form two gametes that is Y and y.

When such plants are allowed to interbreed, there is a probability of 25% of producing green seeds in the next generation.

Refer punett square.

ANSWERED AT 24/02/2020 - 12:32 AM

QUESTION POSTED AT 24/02/2020 - 12:32 AM

Letter D is the part of the cell that makes proteins. What is letter D? A) ribosomes B) chromosomes C) chloroplast

the answer is A.RIBOSOMES

ANSWERED AT 24/02/2020 - 12:27 AM

QUESTION POSTED AT 24/02/2020 - 12:27 AM

A microbiologist is in the process of classifying a newly discovered organism. Its characteristics include: · eukaryotic · multicellular · reproduces by spores · motile in some stage of its life cycle · decomposer Which type of organism is it most likely to be? club fungus fungus-like protist plant-like protist sac fungus

Based on the characteristics of the new organism discovered by the biologist, it can be concluded that this organism is most likely a fungus-like protist. The organism is a multi-cellular eukaryote who reproduced by the spores and is motile in few stages of the life cycle. Besides all this it is a decomposer. This all characteristics fit the description of a fungus like protist. They are most commonly found on the dead wood, but they also produce spores like the fungi.

Hence, the correct answer is 'fungus-like protist'.

ANSWERED AT 24/02/2020 - 12:18 AM

QUESTION POSTED AT 24/02/2020 - 12:18 AM

True or False? Most of the energy resources used to generate electricity are renewable

False I believe because due to the fact that fossil fuels etc. are not renewable, and they are some of the main sources of power.

ANSWERED AT 24/02/2020 - 12:05 AM

QUESTION POSTED AT 24/02/2020 - 12:05 AM

Muscle cells have many mitochondria for A) energy. B) protection. C) divisibility. D) reproduction

A) Energy could be the answer.

ANSWERED AT 23/02/2020 - 11:58 PM

QUESTION POSTED AT 23/02/2020 - 11:58 PM

Why did the invention of pcr make dna fingerprinting possible


With the invention of the PCR technique , DNA profiling took huge strides forward in both discriminating power and the ability to recover information from very small or degraded starting samples.

The process of PCR mimics the biological process of DNA replication but confines it to specific DNA sequences of interest.

In PCR process , the DNA sample is denatured into separate individual polynucleotide strands through heating. Two oligonucleotide DNA primers are used to hybridise to two corresponding nearby sites on opposite DNA strands. Thus two new copies of the sequences of interest are generated.

Repeated denaturation , hybridisation and extension in this fashion produce an exponentially growing number of copies of the DNA of interest.

Quantitative PCR methods enable automated , precise and high - throughput measurements.

ANSWERED AT 23/02/2020 - 11:50 PM

QUESTION POSTED AT 23/02/2020 - 11:50 PM

Many people try to eliminate fat from their diets. Which is one reason it is necessary for humans to eat fat? A.The internal organs are cushioned by fat. B.Eating fat is the fastest way to get energy. C.Fat stores less energy than polysaccharides. D.Saturated fats clear out the blood vessels.


A.The internal organs are cushioned by fat.


-Most of the nutrients in food fall into three major groups: proteins, fats, and carbohydrates. The body uses fat as a fuel source, and fat is the major storage form of energy in the body.By supplying energy, fats save proteins from being used for energy and allow them to perform their more important role of building and repairing tissues.

Fat also has many other important functions in the body, and a moderate amount is needed in the diet for good health.They also cushion internal organs, provide insulation against temperature and also facilitate absorption of fat soluble vitamins.

ANSWERED AT 23/02/2020 - 11:45 PM

QUESTION POSTED AT 23/02/2020 - 11:45 PM

Do plants such as Ferns need to break down glucose in order to obtain energy

No they absorb the sun's energy directly.
Hope this helps

ANSWERED AT 23/02/2020 - 11:28 PM

QUESTION POSTED AT 23/02/2020 - 11:28 PM

Grain products are a good source of carbohydrates and . a. Vitamin B complex b. Vitamin A c.Calcium


Grain products are a good source of carbohydrates and Vitamin B complex


ANSWERED AT 23/02/2020 - 11:28 PM

QUESTION POSTED AT 23/02/2020 - 11:28 PM

Alternative versions of genes

These alternative genes are called alleles

ANSWERED AT 23/02/2020 - 11:22 PM

QUESTION POSTED AT 23/02/2020 - 11:22 PM

Surging photosynthesis, sugar c16h12o6 is produced from carbon dioxide, water, and sunlight, which statement best explains what happens during photosynthesis

Light energy is absorbed by chlorophyll and this is used to convert carbon dioxide and water into sugar called glucose 

ANSWERED AT 23/02/2020 - 11:22 PM

QUESTION POSTED AT 23/02/2020 - 11:22 PM

Breathing hard during exercise brings oxygen to your muscles, which helps the ___ process release energy to fuel your workout A) oxidation B) active transport C) diffusion

Answer: A) oxidation


Breathing is a vital metabolic process which avails oxygen to the body. During the process of exercise the muscles and other important cellular structures requires oxygen our heart pumps the blood faster so as to avail oxygen to all the parts of the body which requires oxygen. It also results in the oxidation of the food molecules which when breaks down result in the release of energy in the form of ATP. The energy in the form of ATP is used by the muscles which helps in workout.  

ANSWERED AT 23/02/2020 - 10:55 PM

QUESTION POSTED AT 23/02/2020 - 10:55 PM

Which of these is an environmental effect of burning fossil fuels? A) Soil erosion B) Temperature increase C) Habitat succession D) Flooding

I believe that would be a temperature increase

ANSWERED AT 23/02/2020 - 04:03 AM

QUESTION POSTED AT 23/02/2020 - 04:03 AM

Earth’s first life forms were __________. aerobic cyanobacteria photosynthetic chemoautotrophs

The answer to your question would be Photosynthetic 

ANSWERED AT 23/02/2020 - 03:23 AM

QUESTION POSTED AT 23/02/2020 - 03:23 AM

What type of fuel makes up biodiesel

Biodiesel is defined as mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats which conform to ASTM D6751 specifications for use in diesel engines. Biodiesel refers to the pure fuel before blending with diesel fuel.

i hope this helps you in the time of your need!! =D

ANSWERED AT 23/02/2020 - 01:43 AM

QUESTION POSTED AT 23/02/2020 - 01:43 AM

A ribozyme is a catalytic protein that assists in the processing of tRNA, true or false

True, because ribosomes are where RNA is transferred into proteins that speed up the process.

ANSWERED AT 23/02/2020 - 01:38 AM

QUESTION POSTED AT 23/02/2020 - 01:38 AM

The burning of fossil fuels by cars and factories has most affected the ______________ cycle. A) carbon B) hydrogen C) nitrogen D) water

The answer would be A. Carbon

ANSWERED AT 23/02/2020 - 01:19 AM

QUESTION POSTED AT 23/02/2020 - 01:19 AM

Compare and contrast point sources and nonpoint sources of water pollution. Give an example of each.

point sources are easy to locate since they come from one specific place like factories. nonpoint sources are hard to locate because they come from many different places like plastic trash

ANSWERED AT 23/02/2020 - 01:16 AM

QUESTION POSTED AT 23/02/2020 - 01:16 AM

What happens to the bonds between atoms when chemical changes occur

Chemical reaction happens, reaction occurs when two or more molecules interact and the molecules change.

ANSWERED AT 22/02/2020 - 10:43 PM

QUESTION POSTED AT 22/02/2020 - 10:43 PM

Maintaining internal conditions within in an organism is a characteristic of life known as _____. metabolism energy cells homeostasis

Homeostasis, it is the process of organisms regulating their internal conditions. 

ANSWERED AT 22/02/2020 - 07:02 PM

QUESTION POSTED AT 22/02/2020 - 07:02 PM