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Dominik [7]
2 years ago
5

The secondary structure of a protein is held in place by.

Biology
1 answer:
SCORPION-xisa [38]2 years ago
3 0

Answer:

The secondary structure of a protein is held by, hydrogen bonds between the carboxyl groups and the amino groups in the polypeptide backbone.

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In tomatoes, tall (D) is dominant over dwarf (d) and smooth fruit (P) is dominant over pubescent fruit (p), which is covered wit
juin [17]

Answer:

The correct answer would be - Dd Pp.

Explanation:

As it is given that tall D is dominant over dwarf d and smooth plant Pis dominant over pubescent p so the the genotype of dominant trait that is tall and smooth tomato plants would be DDPP . similarly the recessive trait that is dwarf and pubescent plant would be ddpp

Thus, the cross between these would be -

DD PP x ddpp

And gametes would be - DP,DP, dp, and dp.

So, all the 16 offspring would have Phenotype would be heterozygous tall and smooth and DdPp genotype .

Thus, the correct answer would be - Dd Pp.

5 0
3 years ago
Insertion of a narrow flexible tube, or catheter, through a blood vessel into the heart to withdraw blood samples, measure press
Mariulka [41]
Insertion of a narrow flexible tube, or catheter, through a blood vessel into the heart to withdraw blood samples, measure pressures, and inject contrast medium for imaging purposes is called Cardiac catheterization<span>. Cardiac catheterization is a procedure to examine how well the heart is working. A thin, hollow tube called a catheter is inserted into a large blood vessel that leads to the heart. It is normally performed if one has a disease of the heart muscles, valves, or coronary arteries. During this procedure, the pressure and blood flow in the heart can be measure and therefore a problem or a disease can be diagnosed; or the efficiency at which the heart is working.</span>
6 0
3 years ago
A marine ecologist counts the number of octopus in three different intertidal regions that are each two hectares. The octopus co
patriot [66]

Answer:

The best estimate of population density of this particular Octopus spieces is (TOTAL POPULATION OF THE OCTOPUS)/(TOTAL AREA OF LAND)

Population density = (15/6) Octopus per hectare

Explanation:

To estimate the population density of a spiece in a particular area of land, we count the total number of the specie in the area and divide the total number by the area of the sampling region.

Above, the marine ecologist counts the number of octopus in three different intertidal regions that are each two hectares. The octopus counts are 7, 2, and 6 respectively.

Therefore, the total number of Octopus is 7 + 2 + 6 making 15. The regions are 2 hectares each. Since there are three of the intertidal regions, the total area is 2 x 3(6 hectares).

Therefore, Population density = (15/6) Octopus per hectare

6 0
3 years ago
Question 1 of 10
Sati [7]

Answer: Option A) Parathyroid glands

Explanation:

The Parathyroid gland located in the neck region helps in the secretion of an hormone called Parathormone.

This hormone helps to raise the levels of calcium ions in the body, by preventing the loss of calcium ions through urine, and also preventing excess deposit of calcium ions in the bone, thus regulating bone density.

6 0
4 years ago
The outside shell of a virus is called the ____.
Nataly_w [17]
I think the answer is C. capsid
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4 years ago
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