Answer:
According to Chargaff's rule, if a DNA molecule has 26 cytosine base molecules it will also have 26 guanine molecules.
Explanation:
DNA is formed by the bases adenine guanine, thymine and cytosine, distributed in its two strands whose proportion or percentages of nitrogenous bases can be calculated according to Chargaff's rule.
<u>Chargaff found that in a DNA molecule the ratio of purine:pyrimidine is 1:1, so there should be the same amount of thymine as adenine and a similar amount of guanine for cytosine</u>, according to the complementarity of the bases.
According to Chargaff, if a DNA molecule contains 26 cytosine bases —one pyrimidine— then it also contains 26 guanine molecules, one purine.
In the case that the molecule has a total of 100 nitrogenous bases, the amount of the other bases can also be known:
- <em>Cytosine 26
</em>
- <em>Guanine 26
</em>
- <em>Adenine 24
</em>
- <em><u>Thymine 24
</u></em>
- <em>Total 100</em>
Homozygous means there are two dominant or two recessive genes. In the case of the female, it is dominant, so her genotype is LL. In order for the male to have short eyelashes, he must be homozygous recessive, or ll.
When you cross LL by ll, you will end up with Ll, Ll, Ll, Ll, or 100% heterozygous dominant genotype. The genotype ratio of the offspring is 1:1.
Hope this helps =)
The kidneys filter the blood to excrete waste
<span>Shale rock is most likely to be changed to slate during regional metamorphism. it is a mix of mud, clay minerals, quartz and calcite. It is the most common sedimentary rock. this rock is formed by the deposition of slow moving water mainly in lake,river etc.Black skales are rich in unoxidised carbon.</span>
Answer:
A
Explanation:
Both are igneous because lava/ magma form igneous rocks.