1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MAVERICK [17]
3 years ago
14

The first amino acid of a new polypeptide chain is

Biology
1 answer:
Nezavi [6.7K]3 years ago
5 0

The initiator tRNA carries the amino acid methionine, so the first amino acid of the new polypeptide chain is methionine.

You might be interested in
If crossing over did not occur why will meiosis still increase genetic variation
tester [92]
Yes sir it will meiosis is my fav part of science

6 0
3 years ago
Describe the neural and renal mechanisms that control blood pressure.
Andrei [34K]

Answer:

The autonomic nervous system is the main neural regulator of circulation and blood pressure in the short term and beat by beat and exerts its function through various reflexes that regulate vasomotor tone, heart rate and cardiac output. At the renal level, the renin–angiotensin–aldosterone system is possibly the most important in the maintenance of arterial homeostasis.

Explanation:

Blood pressure is regulated by a series of interrelated autonomic systems and humoral reflexes, which continually adjust the determining elements of the system (heart rate, stroke volume, total peripheral resistance and circulating volume).The effective circulating volume is controlled by a series of reflex systems, which obtain information about the perfusion pressure (baroreceptors in the carotid bulb and aortic arch), plasma osmolarity (hypothalamus) and urinary sodium (distal tubule).The kidney has its own self-regulatory mechanisms. The reduction in renal blood flow is detected at the level of the mesangial cells of the juxtaglomerular apparatus, starting the renin-angiotensin system. The increase in angiotensin II produces on the one hand local vasoconstriction, and on the other hand stimulates the production of aldosterone by the adrenal cortex with the consequent tubular reabsorption of sodium and water.Antidiuretic hormone or vasopressin (released from the hypothalamus by stimulation of arterial baroreceptors and also by stimulation of angiotensin II) also acts at the renal level, which acts as a powerful and water-saving vasoconstrictor in the distal tubule.

5 0
3 years ago
Which substance has a high albedo?
Inessa [10]

Answer:

Which substance has a high albedo? B) White Sand

Explanation:

The albedo is the amount of energy that is reflected by a surface. It is determined by the refletivity of that surface. Albedo can range from 0 (no reflection) to a value of 1 (100% reflection). Generally, dark surfaces have a low albedo and light surfaces have a high albedo. Liquid water is considered to have a low albedo, like dark rock and rich soil.

4 0
3 years ago
Read 2 more answers
How to draw a representation of binary fission
Alchen [17]

There's a great picture that I attached below that is a great representation

4 0
3 years ago
Chromosomes are strands of ADN wrapped around​
babymother [125]

Answer:

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

3 0
3 years ago
Other questions:
  • If you take a bite of a plant why does it not taste sweet all the time with sugar made?
    14·2 answers
  • HEEEEEEELLLLLLLLLLLPPPPPPPPPPPPPPPPPPPPPPP
    10·2 answers
  • There are several external forces that acct on rocks in the rock cycle. Which one is
    5·2 answers
  • The pigment chlorophyll is contained in _____.
    8·1 answer
  • Can enzyme fit everything
    8·2 answers
  • Which of the following situations would be an example of sensory adaption? A. A loud noise suddenly startles a women as she is a
    8·1 answer
  • The greenhouse effect is responsible for which environmental condition listed below?
    15·1 answer
  • Bacteria undergo mitosis and meiosis in order to reproduce and increase genetic recombination.
    13·1 answer
  • (90 POINTS) The three points of cell theory correspond to which signs of life?
    13·1 answer
  • What is an environmental cost of fossil fuels????<br><br>​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!