Answer:
Aids energy transfer from a molecule to another
Explanation:
ATP aids energy coupling, combining exergonic reactions to endergonic reactions. In PHOTOSYNTHESIS, ATP is produced in the light reactions for Calvin cycle to produce sugar. In CELLULAR RESPIRATION, sugar undergoes oxidized to produce ATP needed to energize cellular metabolism (ATP is the energy currency of the cell).
ATP is a major source of energy for each and every biological process. In PHOTOSYNTHESIS energy is changed to ATP in the light-dependent phase which is used for synthesis in the dark phase.
ATP is a needed in RESPIRATION. ATP is the energy currency of the cells, sometimes called the “molecular currency” of energy distribution.
For this experiment, artificial selection is made by the scientists where traits of benefit are made to be present in the gene by high mutation rate so that the adaptability increases.
Explanation:
Natural selection is a process by which a organism with beneficial traits survive and reproduce in large numbers. They adapt to the environment very quickly and pass on these traits to its progeny which are at the better survival zone.
The mutations for the beneficial traits in certain genes caused the bugs to adapt to their environment well. When mated, they pass on the traits in every generation. It is also said that those organisms who did not get mutated eventually died.
The faster the mutation rate, the faster the mutated bugs with beneficial traits will appear in each generation.
From the graph it can be said that those bugs who could not bear the mutation they died and hence did not appear in the next generation only those bugs who could cope up the environment survived.
Answer:
The correct answer is - 3/16 or 18.75% portion will be resistant to both Bt and DDT.
Explanation:
It is given that bollworms that are susceptible to Bt are represented by either RR or Rr and resistance one are shown by rr genotype and bollworms that are resistant to DDT are represent TT or Tt genotype and susceptible to DDT have tt genotype.
Cross: RR tt with rr TT
Gametes: Rt and rT
F1 cross:
RT
rT RrTt ( susceptible Bt and resistant DDT)
F1 Cross with F1
Gametes: RT, Rt, rT and rt
cross:
RT Rt rT rt
RT RRTT RRTt RrTT RrTt
Rt RRTt RRtt RrTt RrTt
rT RrTT RrTt rrTt rrTt
rt RrTt Rrtt rrTt rrtt
The bold genotypes are the three out of 16 that are resistant to both DDT and Bt.
Prokaryotic bacteria are surrounded by a cell membrane that contains the transport proteins to regulate the entry and exit of materials through the cell, the cell wall to help maintain cell shape and structure, and the capsule, which aids against drying out and protects bacteria from a host's immune system.
<h3><u>Explanation:</u></h3>
Bacteria are the prokaryotic organisms that are found in every part of Earth. These organisms do have an interesting ultrastructure. The coverings of the bacteria are three in layer. They are
A. The outer capsule.
B. The middle cell wall.
C. The inner cell membrane.
The capsule is the outermost covering of bacteria that is formed of different slimy materials. These materials contains hygroscopic substances which can absorb water from the surroundings even when the water concentration in outside is very very low. This layer of protection outside bacteria help them to protect themselves against drying out at dry conditions.
The middle cell wall is formed of polymers of N acetyl glucosamine and N acetyl muramic acid. This layer is chitin in nature and is strong enough to maintain the shape and size of bacteria irrespective of outer conditions.
The innermost layer of bacteria is cell membrane which is formed of proteins and lipids bilayer and this cell membrane contains different transport for proteins which help in transport of different substances like water and nutrients inside the cell by means of active transport or passive diffusion.
The herpes simplex virus or HSV have periods of latency in the tissue it invades, in this case, the nervous system. Latency means that the virus will not be actively dividing for a certain period of time which means signs and symptoms related to viremia and direct action of the virus will disappear. This does not mean that the patient is cured, but the disease will soon be active again anytime, especially if the patient will enter a time of immunocompromise.
