Birds and mammals independently evolved four-chamber hearts
So there are four types of nucleotides in DNA:
- Adenine
- Cytosine
- Guanine
- Thymine
And the complements are:
- Adenine ⇄ Thymine
- Cytosine ⇄ Guanine
<u>Using this information, the complementary base of TTGCACG is AACGTGC.</u>
Answer:
The correct answer is option D. Light and some other factors are necessary for chlorophyll production
Explanation:
By this experiment, it is clear that light is the major factor that helps in the production of chlorophyll in seedlings or plants. In this study, placing the seeds in the light turns 75 seedlings green which is possible by the production of the green pigment, chlorophyll only. So, it is proved that light is a key factor in the production of chlorophyll.
Besides light, there must be some other factors (mineral nutrition and chemical metabolites) that also play role in the production of chlorophyll or increase or decrease of the chlorophyll production as few seedlings did not turn green in the study.
They have to have a higher density than water to have the ability to stay on the sea floor. Otherwise they would just float to the surface of the water
Answer:
The correct answer is nitrogen base
Explanation:
The nucleotide sequence of one codon differ from that of another codon by the presence or absence of specific nitrogen base.The nucleotide sequence of different codons contain different nitrogen bases.
As a result change in genetic code result from the change in the nitrogen bases of the codons present in the genetic code.
In simple words change in single nitrogen base of a codon will change the entire codon.
