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Kay [80]
3 years ago
6

The body uses two types of amino acids: essential and nonessential. Which of the following statements about essential and noness

ential amino acids is correct?
There are 11 essential amino acids.
Nonessential amino acids cannot be produced in the body.
There are 11 nonessential amino acids.
The body can produce essential amino acids when the amino acid pools are diminished.
Biology
1 answer:
zlopas [31]3 years ago
7 0

Answer:There are 11 nonessential amino acids.

Explanation:amino acids are monomers of proteins.proteins are made up of carbon,hydrogen, oxygen and nitrogen.there are 20 amino acids found in proteins.

Plants cam produce all the amino acids they need but animals cannot.

Essential amino acids are those that animals cannot produce by themselves and so need to obtain from their diet.there are 9 in numbers.

Non-essential amino acids are produced by the animals.they are not necessarily non-essential as the name indicates.they are 11 in numbers.

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During <u>fertilization</u>, chromosomes from haploid gametes combine, and a <u>diploid</u> zygote is formed.

Explanation:

Fertilization is the union of the male gamete(haploid chromosomes) with the female gamete(haploid chromosome) to form a diploid cell called zygote (with diploid chromosomes).

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Answer:

3. An even number of chromosomes are required for synapsis during prophase I and proper pairing during metaphase

Explanation:

Mules are hybrids of a cross between a female horse and a male donkey. Horses contain 64 chromosomes while donkeys contain 63 chromosomes in their somatic cells respectively. This means that they each produce 32 and 31 chromosomes respectively during meiosis. A mule, hence, contains 32+31= 63 chromosomes in their somatic cells.

This chromosome number in mules are uneven for meiosis to occur because meiotic division requires that an even number of homologous chromosomes pair together in a process called SYNAPSIS during prophase I of meiosis I. This is impossible in a mule because of the uneven number of chromosomes in its cells.

Also, during metaphase of meiosis, the homologous chromosomes need to be properly aligned at the equator for separation to occur. This is also impossible in a mule considering the number of chromosomes that don't add up.

Due to this reason of unevenness in the number of chromosomes present in a mule, meiosis will not occur and if meiosis (gamete formation) does not occur, reproduction cannot take place. Therefore, the mule is a sterile species i.e. cannot produce offsprings via sexual reproduction.

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Interfacial adhesion and surface bioactivity of anodized titanium modified with SiON and SiONP surface coatings, The statement is correct.

<h3>what is adhesion ?</h3>

Adhesion is a type of attraction between two dissimilar phases, the theory of adhesion can be up two types mechanical interlocking and physical and chemical bonding and it is a combination of three methods.

Mechanical interlocking means when two dissimilar phases interact with  one another by mechanical forces, requires a rough surface where the other material can enter.

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