During the Industrial revolution, due to pollution, trees become darker in the urban area. Light-colored moths were, thus, easy prey. The dark-colored moths were able to camouflage on dark trees and avoid predators. The phenomenon is known as industrial melanism. So, in polluted urban areas, the number of dark-colored peppered moths increased. In the clean environment, were much effective in hiding from predators and they outnumbered the dark-colored moths.
Answer: acquired
Explanation:
b. GTCCTTAGC.
c. CAGGTTACG.
d. GTCCTTACG.
Answer:
A
Explanation:
In DNA A is complimentary to T, and C is complimentary to G
The statement is - True.
In the name Acer rubrum, the word rubrum is defining the species, while the acer is defining the genus.
Acer rubrum is actually the scientific name for the red maple tree, found mostly in the eastern half of the United States, being a native species to the North American continent.
The red maple is a tree in the family of Sapindaceae, and in the order of Sapindales.
It is considered as the most abundant native tree in the United States, and it is also one of the most used trees in the parks and homes in big portion of the United States.
B) The genome is DNA based and double stranded.
C) The genome is RNA based and single stranded.
D) The genome is RNA based and double stranded.
Answer:
A) The genome is DNA based and single stranded.
Explanation:
The reason why it is DNA based is because DNA contains thymine base (T). It is not RNA based because RNA contains uracil base (U) instead of thymine and in the given question there is not uracil mentioned.
It is single stranded because according to Chargaff's rule a double stranded nucleic acid must have the ratio of purine bases to pyrimidine ratio as 1:1.
Adenine (A) & Guanine (G) are purine bases while Thymine (T) & Cytosine (C) are pyrimidine bases so according to Chargaff's rule AG/CT = ~ 1. It means [A+G] = [C+T]
Also, A makes interaction with T while C makes interaction G. It means,
[A] = [T]
[C] = [G]
By this we can easily infer that a double stranded DNA will have as much A as much it has T & same goes with C & G.
But, in the given question, A = 33% while Thymine = 28% which are not equal so this means that this molecule is single stranded.
Answer:
Advantages and Disadvantages of Vegetative Propagation
ADVANTAGES
Faster and more certain method of propagation.
New individuals produced have exactly identical qualities as their parents. This preserves the characteristics of food and flower crops.
Can be used to reproduce plants that do not have viable seeds.
The flowers produced are of a superior quality.
Certain desirable characteristics present in the fruit can be maintained.
DISADVANTAGES
Does not produce new varieties
Leads to over crowding
Very little dispersal
(please mark me the brainliest and i'll do the same)
Answer:
??????
Explanation:
Begins with/ ends with:
Occurs in:
Results in:
Type of reproduction
Function
Options for mitosis chart
A. Growth Replacing of old cells, asexual reproduction
B.Cellular reproduction, regeneration of the individual organism
C. One diploid cell; two diploid cells
D. The process of asexual reproduction in which the cell divides into producing a replica with an equal number of chromosomes
E. Humans, animals, single cell speicies, others
MEIOSIS CHART
Begins with/ ends with:
Occurs in:
Results in:
Type of reproduction
Function
OPTIONS
1. A type of reproduction in which the number of chromosomes are reduced by 50% to allow transmission of the genes to offspring
2. Human, animals, plants.
3. Sexual reproduction, seeds
4. One diploid cell; four haploid cells
5. Biological reproduction, generation of the species