Answer:
See the answer below
Explanation:
<em>Both transcription and DNA replication produce nucleic acids which are polymers of (C, G, A, and T or U). Both processes depend on an enzyme which adds one nucleotide at a time. </em>
<em>To determine which nucleotide is added next, both transcription and DNA replication use the nucleotide sequence in a </em><em>template DNA</em><em> strand and the </em><em>base pairing </em><em>rules.</em>
Transcription is a process through which RNA is synthesized using a DNA template. An enzyme known as RNA polymerase adds nucleotide bases to grow the RNA strand.
Replication is a process during which DNA makes a copy of itself. The double helix unwinds and each strand is used as a template to make a new strand. An enzyme known as DNA polymerase adds nucleotide bases to grow the new strands.
<u>In both transcription and replication process, the nucleotide sequence of the template DNA strand determines the which nucleotide will be added to the new RNA and DNA strands being synthesized according to the base pairing rule. Purine bases always pair with pyrimidine bases and more specifically, cytosine always pair with guanine while adenine always pair with thymine (uracil in RNA).</u>
Answer:
Gene is present on the X chromosome.
Explanation:
The two main types of chromosomes are autosomes and sex chromosomes. Autosomes regulates the functioning of the body but do not play role in determining the sex of an individual. The sex chromosomes distinguishes between the male and female.
The linkage of sex chromosomes is present in Drosophila as well. The cross between the F1 generation leads to both the red and white eyed flies because the eye color gene is present on the X chromosome. The males contain only one X chromosome and the presence of recessive gene results in the white color whereas in females both the X chromosomes must contain recessive gene for the white color.
Thus, the answer is gene involved is on the X chromosome.
Answer:
Option A, Hormones are controlled by a feedback loop; information about a system is sent back to the controller of the system to improve its function.
Explanation:
Negative feedback loop controls the hormone production and release. This is done by eliciting the release of substances till a certain level after which the stop signal is activated thereby preventing further release. By this method, concentration of hormones in blood is maintained within the narrow range.
For example – Thyroid hormones is released when the anterior pituitary signals the thyroid. This continues till the hormones in the blood reach the threshold level. Once the threshold level is reached, hypothalamus receives a feedback and then signals anterior pituitary to inhibit further signaling to the thyroid
Hence, option A is correct
This is because plants has cell wall while dog doesnt have. <span>A </span>cell wall<span> is a structural layer surrounding some types of </span>cells<span>, situated outside the </span>cell<span> membrane. It can be tough, flexible, and sometimes rigid. It provides the </span>cell<span> with both structural support and protection, and also acts as a filtering mechanism.</span>
1) D because even if you rip all them out, the seeds of the plant are still in the ground
2) D because of the current, short-legged birds might get swept away
3) D because all of the other options would most likely not enforced.
