Answer:
are flawed
Explanation:
got it right on e2020
the result of the experiment is precise
Repulsion between negatively charged backbone of DNA double helix van der Waals interaction
Interaction between water and carbonyl oxygen of guanine hydrogen bond
Answer:
Interaction between hydrophobic (nonpolar) amino acid side chains is due to hydrophobic interactions.
Repulsion between negatively charged backbone of DNA double helix is due to electrostatic repulsion forces.
Interaction between water and carbonyl oxygen of guanine is due hydrogen bonding
Explanation:
The hydrophobic effect refers to the tendency of non-polar substances forms aggregates in an aqueous solutions in order to avoid interactions with water molecules. This results in a favorable entropy increase.
For non-polar amino acids, hydrophobic interactions are important in stabilizing their structure wherein they are densely packed within the core of a protein while those with with polar groups are found in the exterior.
The phosphate backbone of DNA is negatively charged. Since like charges repel, therefore, electrostatic repulsion forces of the ions are responsible the repulsion of the backbone DNA double helix.
Hydrogen bonds are formed between electronegative oxygen atoms and hydrogen atoms of neighboring molecules due to the partial negative and positive charges on each of the atoms.
This hydrogen bonding is responsible for the interaction between water and carbonyl oxygen of guanine as the hydrogen atoms of the water molecules are attracted to the oxygen atoms of the guanine molecules due to the partial charges on each of the atoms.
b. 2
c. 23
d. 46
e. There is no maximum number.
Answer:
b. 2
Explanation:
Humans have typically 23 pairs of chromosomes. Each pair is composed of a chromosome from the mother and another from the father. A specific locus in a chromosome is composed of two alleles. An allele inherited from the mother and the other allele inherited from the father.
Answer:2
Explanation:
Out of the followinggiven choices;
mutation
recombination
differentiation
change
The answer ischange and mutation. When there is a mismatch base pair the mismatch repair mechanismof the polymerase enzyme kicks in. if the mismatch repair is defective, then a mutation will occur at the site of the mismatched base. These mutations can result inchanges in the phenotype of the cell that resultsin disease.
SOS:
The answer is change and mutation!
Hope this helps!
Answer:
Pseudoscience
Explanation:
There is no scientific evidence capable of confirming the existence of extraterrestrials. In the case of the Bermuda Triangle, the myth of extraterrestrial life has been fueled by the disappearance of planes and boats in this area.
The cell cycle of yeast cells grown in the nutrient-poor environment is approximately 168 % of the cell cycle of yeast cells grown in the nutrient-rich environment. Hence option 1 is correct.
Cell cycle is defined as the cascade of cellular activities that lead to cell division into two daughter cells. The primary purpose of the cell cycle is to accurately divide the enormous amount of DNA found in the chromosomes into two daughter cells that are genetically identical. A cell spends the majority of its time in what is known as interphase, where it develops, duplicates its chromosomes, and gets ready to divide.
The interphase and M-phase are the two phases that make up the cell cycle. About 90% of the cycle is made up of interphase, during which the cell develops and copies its chromosomes in order to divide. Undifferentiated ESCs have a G1 and S cell cycle percentage of 15-20% and 60–70%, respectively, however as the ESCs differentiate, this ratio changes.
Thus, the cell cycle of yeast cells grown in the nutrient-poor environment is approximately 168 % of the cell cycle of yeast cells grown in the nutrient-rich environment. Hence option 1 is correct.
To learn more about cell cycle, refer to the link below:
#SPJ2
Answer: 168
Explanation:
Answer:
Once water is in the xylem, it travels upwards - against the force of gravity - towards the rest of the plant. Water is able to move against gravity due to two forces: tension and cohesion. Tension is a 'sucking force' which is created when water evaporates from leaves (transpiration), pulling more water into the leaf.
Explanation:
Movement of Water and Minerals in the Xylem. Most plants obtain the water and minerals they need through their roots. The path taken is: soil -> roots -> stems -> leaves. The minerals (e.g., K+, Ca2+) travel dissolved in the water (often accompanied by various organic molecules supplied by root cells).
Answer:
mineral salts
Explanation: