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3 years ago

DNA is a macromolecule called nucleic acid (a polymer). What is the monomer (subunit; one part) of DNA called?

Biology

2 answers:

zimovet [89]3 years ago

8 0

Nucleotide is a combination of a sugar, nitrogen base and phosphate groupment

timofeeve [1]3 years ago

6 0

Answer: nucleotide

Explanation: the subunit of DNA called nucleotide they are made up of 5 carbon sugar phosphate group and a nitrogenous base

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How many kilometers above sea level would this mountain reach, and what would the approximate temperature be at this altitude?

UkoKoshka [18]

Answer:

It would be about 9 kilometers above sea level, and you can expect the temperature to be cold. (see explanation)

Explanation:

If there's no snow or rain and you’re not in a cloud, then the temperature decreases by about 5.4°F for every 1,000 feet up you go in elevation. That is 9.8°C per 1,000 meters. However, if you’re in a cloud, or it is snowing/raining, the temperature decreases by about 3.3°F for every 1,000 feet up you go in elevation. Thus meaning it’s a change of 6°C per 1,000 meters.

8 0

3 years ago

Comparing DNA Replication and Transcription

ozzi

The missing information has been completed as:

DNA Tempelate complementary DNA mRNA

3' TTACG 5' 5' AATGC 3' 5'UUACG 3'

3' AAUGC 5' 5' TTACG 3' 5'UUACG 3'

3' GGCGG 5' 5' CCGCC3' 5' CCGCC3'

' 3'TGCATCG5' 5' ACGTAGC 3' 5' ACGUAGC 3'

3' AGACTC 5' 5' TCTGAG 3' 5' AGACTC 3'

3'GATAAGA 5' 5' CTATTCT 5' 5' CTAUUCA 3'

3' CTGGCTAC5' 5' GACCGATG 3' 3'CUGGCUAC 5'

Explanation:

Some of the sequence of DNA given is in 3' to 5' direction, mRNA sequence is also given.

The DNA is double stranded helix which replicates by semi conservative mode. The two strands unwind to act as a template for other strands. In transcription the 3' to 5' strand acts as a template because RNA synthesis takes place in 5' to 3' direction. mRNA is single strand. It has nucleotides in it from which 3 base pairs acts as a code for amino acid.

The following table shows DNA strand having complementary sequaence and mRNA synthesized.

DNA Tempelate complementary DNA mRNA

3' TTACG 5' 5' AATGC 3' 5'UUACG 3'

3' AAUGC 5' 5' TTACG 3' 5'UUACG 3'

3' GGCGG 5' 5' CCGCC3' 5' CCGCC3'

' 3'TGCATCG5' 5' ACGTAGC 3' 5' ACGUAGC 3'

3' AGACTC 5' 5' TCTGAG 3' 5' AGACTC 3'

3'GATAAGA 5' 5' CTATTCT 5' 5' CTAUUCA 3'

3' CTGGCTAC5' 5' GACCGATG 3' 3'CUGGCUAC 5'

3 0

3 years ago

Mechanical energy materials

Elodia [21]

Answer:

Mechanical energy is one of the only types of energy that is easy to see. If something is moving, it is using mechanical energy! Take a look at these sources of mechanical energy that you're likely to find in the home.

- Turning a doorknob

-Breathing in and out

- Hammering a nail

-Riding a bicycle

-Sharpening a pencil

-Using kitchen appliances

-Listening to music

-Typing on a keyboard

-Driving a car

-Exercising

Explanation:

<em>Mechanical- </em>Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work. In other words, it is energy in an object due to its motion or position, or both.

5 0

3 years ago

Read 2 more answers

Describe the procedure of water reaching the leaves from the roots of a plant

Lisa [10]

The water enters the xylem first by osmosis. Water moves from the soil to the root hair cell down a water potential gradient, and to the root cortex cell from a higher water potential to a lower water potential, this process will be repeated until water enters xylem. Because transpiration is occurring in the leaf, water is lost so there is a lower water potential inside the leaf. Osmosis moves water from the xylem to the leaf because the xylem has a higher water potential. Water moves from the xylem to the cells of the leaf. This pulls water up the xylem via cohesion which is the process of water molecules attracting each other and sticking together. Water does not fall down the xylem as here is adhesion which is the process of water molecules sticking to the inside of the xylem.

8 0

3 years ago

List three factors that normally stop animal population from growing indefinitely <br><br>

alexgriva [62]

Answer: Food, Water, Shelter and Space

Explanation: In the natural world, limiting factors like the availability of food, water, shelter and space can change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations.

8 0

2 years ago