1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ainat [17]
3 years ago
14

DNA and RNA share a number of similarities, but they also differ in certain aspects of their structure.

Biology
2 answers:
Airida [17]3 years ago
5 0
Uracil is not found in DNA, only RNA, and replaces thymine in RNA 
sveta [45]3 years ago
5 0

The correct answer is uracil.

Uracil is a nitrogen base that is found in the RNA and not in the DNA, which has thymine. The three other nitrogen bases are the same ( Adenine, Guanine and Cytosine).

Besides the difference in the nitrogen bases, the two molecules also differ in the sugar that builds the structure ( DNA has desoxyribose and RNA has ribose) and the DNA is a two stranded helix, whereas the RNA is a single stranded molecule.


You might be interested in
1. Why does sand settle to the bottom of a jar<br> faster than mud does?<br> 2. What is sediment?
Marysya12 [62]

1. Sand particles are too big to dissolve so their density sinks them

2. Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles.

4 0
3 years ago
Is Gause’s Principle accurate? Explain why or why not.
Novosadov [1.4K]
Gause's Competitive Exclusion Principle

The 'competitive exclusion principle' (CEP) states that two species with identical niches cannot coexist indefinitely. ... Gause helped propel ecology by his approach of experimentally testing mathematical models, and his unifying the concept of the niche with resource competition.
3 0
2 years ago
Read 2 more answers
2. Dominant trait: cleft chin (C) Mother’s gametes: Cc
kakasveta [241]

Answer No 2:

      c      c

C   Cc     Cc

c    cc      cc

The genotype of the offsprings would be Cc, Cc, cc, cc i.e heterozygous cleft chin and no cleft chin. The phenotype of the offsprings could be 50% cleft chin and 50% without cleft chin.

there will be 50% chance of the child to have cleft chin.

Answer No 3:

        A        a

A     Aa       Aa

a      Aa        aa

There will be 25% chance for the offspring to have arched feet. As arched feet is a recessive trait, so for this trait to occur both the alleles of the gene should be recessive i.e aa.

Answer No 4:

    B      b

b   Bb    bb

b    Bb    bb

As blonde is a recessive trait, so both the alleles for this gene should be recessive for this trait to occur. Hence, according to the punnet square, there will be 50% chance for the offspring to be blonde.

Answer No 5:

           F      f

F          FF    Ff

f           Ff     ff

As normal vision is a resessive trait, hence both the alleles of the gene should be recessive for the trait to occur. According to the punnet square, there is 25% chance that the child will have normal vision.

3 0
3 years ago
Macronutrients are nutrients that contain inorganic components. <br> a. True <br> b. False
emmasim [6.3K]
This is false, as macronutrients are all made of organic components. Macronutrients are carbohydrates, fats, and proteins. The most basic unit for carbohydrates is glucose. Glucose is an organic molecule with a chemical formula of C6H12O6 which then is broken down by the body to convert it to energy (in the form of ATP). Fats or triglycerides are comprised of fatty acids and a glycerol backbone which can also be used by the body for energy or can be stored for later use. Proteins on the other hand are functional molecules wherein the basic unit for proteins is the amino acid. Proteins are exemplified because they contain nitrogen (CHON). All of which can be used as energy and has specific caloric value per gram (4 kcal for every gram of protein and carbohydrates and 9 kcal for every gram of fat).

Micronutrients are usually inorganic compounds with no caloric value. Usually these micronutrients are essential for maintaining biochemical pathways in the body. For instance, niacin and riboflavin are vitamins that are needed in the production of NAD and FAD which are important for reduction-oxidation reactions in the body (i.e. tricarboxylic acid cycle and electron transport chain).
6 0
3 years ago
The solutions in the two arms of this U-tube are separated by a membrane that is permeable to water and glucose but not to sucro
bazaltina [42]

Answer:

Intially the glucose concentration is levelled and then the liquid level in side A will rise.

Explanation:

  • Initially the liquid ob both sides are in isotonic condition.
  • The membrane is permeable to glucose so glucose will diffuse from higher concentration (2 M) to lower concentration (1 M) until the concentration become equal (1.5 M) on both sides.
  • Know, the Side A have 2 M sucrose and 1.5 M glucose and  side B have 1 M glucose and 1 M sucrose.
  • The side A will become hypertonic and side B will become hypotonic and water will start moving from side B to side A.

7 0
2 years ago
Other questions:
  • In a fixed volume when temperature increases , pressure does what?
    13·1 answer
  • Why is it possible for a point mutation to have no effect on the protein produced?
    8·1 answer
  • What is the main difference between aerobic respiration and anaerobic respiration?
    13·2 answers
  • A direct variation always goes through the origin of the coordinate plane.<br> a. True<br> b. False
    10·2 answers
  • CAM plants have adapted to arid environments by closing their stomata during the day. However, photosynthesis still occurs. This
    10·1 answer
  • The parasympathetic division of the autonomic nervous system A. is associated with "fight or flight." B. opposes the effects of
    9·1 answer
  • Infer why humans would not be able to repair and grow muscle without bacteria?
    11·1 answer
  • What is the original source of energy in a food chain
    15·2 answers
  • All animals need to eat ? To get? To live
    6·2 answers
  • Why do you think scientists call both liquids and gases by the same term-fluids?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!