Answer:
The correct answer is: No.
Explanation:
- Proteins, obtained from different species, having identical sequences of amino acids does not mean that their gene or the mRNA (messenger Ribonucleic Acid) will also have an identical sequence.
- This is because of the degeneracy in the genetic code.
- Three consecutive nucleotides (triplets) in the mRNA sequence codes for an amino acid molecule. These triplets are also called the Codons.
- However, the specificity of a particular amino acid is determined by the first two nucleotides in the codon. The third nucleotide is wobble or degenerate. This means that the nucleotide in the third position of a codon cannot alter the amino acid specified by the first two nucleotides in the codon.
- The mRNA sequences, encoding the protein, obtained from different species may vary in the wobble nucleotide position and hence the mRNA sequence can be distinctly different in different species.
The question bus incomplete, below is the complete question;
You need to determine which degradable material to use as a tissue engineering scaffold for repair of a critical-sized bone defect. (A critical-size defect is one that will not heal unaided.) You are planning to seed the scaffold with cells then implant it into the defect. While the cells proliferate and generate bone, the scaffold will degrade and create void space into which the new tissue may grow. What degradation method would you prefer for this scaffold material and why ?
(Hydrolytic vs Enzymatic degradation, Bulk vs Surface degradation).
The correct answer to the question is Degradation via Hydrolysis.
This Degradation via Hydrolysis will be most preferred and suitable in this application because,as a result of the aqueous environment between the patients, the lack of need for placing a target on the degradation areas (Since it is implanted into the site that has defect, it is accessible by water because it is already localized).
The bulk degradation of the scaffold will also be considered because since the overall dimensions will be consistent, over a given period of time.
But if the material underwent surface degradation, the implant could loosen up before there is sufficient tissue repair has developed or even fall out of the defect..
Or any cells that are seeded can equally detached itself from the scaffold.
Don't think the size of the egg matters what is important is for it to be fertile so the sperm n the egg can fuse for an embryo to b present
Answer:
Answer D
Explanation:
Unlike the gain or loss of member through immigration, emigration, or death, the age of a population's members does not effect population size, meaning the correct answer is D.
Answer:
See the answer below
Explanation:
In science, research questions are generally derived from the observation of phenomena. Also, hypotheses that represent general statements that have not been tested are formulated in such a way that they can be falsified. Hence, for each of the observations in the illustration, the question and their respective hypothesis would be as follows:
1. Observation: a teenager observed that he had three new pimples the night after eating a chocolate bar.
Question: Do chocolate bars cause pimples in teenagers?
Hypothesis: If teenagers eat chocolate bars, they might get pimples.
2. See the attached image
3. Observation: A little boy observed the leaves on trees changed colors when the temperature was lower.
Question: Do lower temperatures cause tree leaves to change color?
Hypothesis: If the ambient temperatures of trees are lowered, their leaves might change color.