answer.
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
gladu [14]
2 years ago
7

DNA is the main hereditary material of all life. However, DNA lacks one important characteristic for the first forms of life. Wh

y have researchers rejected the idea that DNA was found in the first life-form?
Biology
1 answer:
kow [346]2 years ago
3 0

Answer:

The inability to function as catalyst.

Explanation:

DNA is the genetic material present in all organism except some viruses. DNA shows all the properties to work as the genetic material according to the today's environment.

Researchers believe that DNA was not the first genetic material in the early environment. The genetic material should have the catalytic activity in the early forms of life and DNA cannot work as the catalyst. The catalytic property of the genetic material is important in the early , rapid and changing environment. Hence, DNA was not the genetic material in early forms of life.

Thus, the answer is inability of DNA to function as catalyst.

You might be interested in
In some species of Drosophila, there are genes on the Y chromosome that are not on the X chromosome. Imagine that a new allele a
mr_godi [17]

Answer:

True

Explanation:

The Drosophila like the mammals possess X and Y chromosomes but as in males in which the XX is female and XY is male, the sex In Drosophila is not determined by the presence of Y chromosomes as a male determining factor are present on the autosomes.

However, the Y chromosome is important for males as they are involved in the formation of the sperms therefore the presence of Y is important. In the given question if the allele is present ion the Y chromosome which can reduce the size therefore the allele is passed on to the males only ans no females.

Thus, true is the correct answer.

the fly is female (Bridges 1921, 1925). Thus, XO Drosophila are sterile males. In flies, the Y chromosome is not involved in determining sex. Rather, it contains genes active in forming sperm in adults.

3 0
2 years ago
Boris reads about a new scientific theory in the newspaper. Since it is unfamiliar, he does not believe the theory. This is an e
Dmitry_Shevchenko [17]

confirmation bias?

i think that may be correct but i'm not 100% positive i hope it helps a little. Good Luck

6 0
1 year ago
Read 2 more answers
A botanist has discovered a new plant species and is trying to classify the plant. Its seed has one cotyledon, it has six flower
lana66690 [7]

The best suited group for the mentioned plant is Angiosperms and monocot.

Answer: Option C

<u>Explanation:</u>

As mentioned the seed of the plant has one cotyledon and the specific name for these type of plants whose seeds has one cotyledon is called Monocot, Suppose if the seed of the plant has two seeds, It is called dicot.

Hence we can conclude that the mentioned plant comes under monocot and not dicot.  On the other hand, Angiosperms refers to the plants that has flowers with it and gymnosperms usually includes plants without flowers and hence we can classify the plant as Angiosperm and monocot.

6 0
1 year ago
One mole of glucose contains 2870 kJ of energy. The hydrolysis of one mole of ATP releases 30.7 kJ of energy. Calculate the perc
Galina-37 [17]

The answer is:

Total used energy is the energy released by the hydrolysis of one mole of ATP and it is 30.7 kJ.  

Total possible energy (used pus released as a heat) is 2870 kJ.

So, we calculate total used/total possible=30.7/2870=0.01069 or 0.017. Expressed in percentage: 1.07% energy is used.


8 0
2 years ago
The function of the mitotic cell cycle is to produce daughter cells that __________. (etext concept 12.1)
Norma-Jean [14]
Each have four chromosomes.
5 0
2 years ago
Other questions:
  • A red blood cell is 8 μm in diameter. If drawn 100 times larger than its actual size, what diameter will the drawing be in mm?
    12·1 answer
  • How does seed-cutting differ from shelterwood cutting? a. Shelterwood cutting removes all trees within a given area. b. Shelterw
    9·2 answers
  • Read the excerpt from "Mother Tongue." Those tests were constructed around items like fill-in-the-blank sentence completion, suc
    8·2 answers
  • Explain how the reproductive strategies of mosquitoes and elephants help them overcome the natural threats of their environments
    15·3 answers
  • in the chemical reaction of photosynthesis photoautotrophs combine carbon dioxide and water to produce sugar and what other prod
    12·1 answer
  • Juan picks up a steel utensil and immediately drops it because it’s extremely hot. How does the reflex arc work to protect Juan
    12·2 answers
  • Identify the ways in which a rooftop garden can reduce the heat absorbed, compared to an asphalt roof. Select the three correct
    7·2 answers
  • In one experiment, scientists raised mice in germ-free conditions so the mice lacked intestinal microbes. The mice were fed a lo
    5·1 answer
  • Recall what you know about the functions of the skeletal system to complete the following questions. The skeleton provides a fra
    7·1 answer
  • A eukaryotic mutation upstream of a particular gene has been identified that changes the sequence of the TATA box to GATA. How w
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!