Answer:
B. 20%
Explanation:
The complementary base-pairing rule states that Adenine always pairs with Thymine (A with T), and Cytosine with Guanine (C with G).
Because of this, the amount of Adenine present must be the same as the amount of Thymine present, and the same for Cytosine and Guanine.
This means that if there is 30% Adenine, there is also 30% Thymine as each A base is paired to a T base. This adds to 60%, so Cytosine amounts and Guanine amounts must add to 40% to make 100%.
Since they are equal in amount, there must be 20% of each.
Therefore the answer is B. 20%
There is 30% Adenine, 30% Thymine, 20% Guanine and 20% Cytosine.
Hope this helped!
Genetics, blood type gene has two alleles, each allele has genotype A, B or O. The A and B are dominant, and O is recessive. So allele A combined with allele O is type A. Similarly, BO is type B, AA is type A, BB is type B, OO is type O, and AB is typeAB.
If both parents have type A blood, then the alleles could be AA or AO, thus the allele A frequency is 75%, allele O frequency is 25% for both parents.
So the chance of alleles OO is 25% × 25% = 6.25%,
alleles AA is 75% × 75% = 56.25%,
alleles AO is 75% × 25% = 18.75%,
alleles OA is 25% × 75% = 18.75%.
Since AA, AO and OA are blood type A, and OO is blood type O, thus their child has 6.25% chance to be blood type O and 93.75% chance to be blood type A.
The +/- is called the rhesus factor, with + being dominant, and - being recessive.
So if both parents are -, the kids are always -, otherwise the kids might be + or -.
Child Blood Type Estimate Table:
Father's Blood TypeABABOMother's
Blood
TypeAA/OA/B/AB/OA/B/ABA/OBA/B/AB/OB/OA/B/ABB/OABA/B/ABA/B/ABA/B/
To locate <u>positions</u> in east and west directions, <u>cartographers</u> use lines of <u>longitude</u>, also known as <u>meridians</u>. Longitude is the distance in degrees <u>east</u> or <u>west</u> of the prime meridian, which is the reference point for longitude.
<h3>What is a topographic map?</h3>
A topographic map can be defined as a type of map which contains an accurate and detailed graphical (two-dimensional) description, representation or records of both natural and man-made (artificial) features on the surface of planet Earth.
Generally, a topographic map make use of contour lines to represent points of equal elevation above sea level such as:
- Mountains
- Hills
- Plains
- Valley
<h3>What is a line of longitude?</h3>
A line of longitude can be defined as an imaginary great circle of constant longitude on the surface of planet Earth which passes through the North pole (terrestrial pole) and South poles (Meridian) at right angles to the equator.
Read more on line of longitude here: brainly.com/question/17355844
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This design makes it easier for cars to move up the hill because its moving more so it makes it easier to get up the hill
