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Lubov Fominskaja [6]
3 years ago
15

How are characteristics of one generation passed to the next? How can individuals of the same species and even siblings have dif

fernent characteristics?
Biology
1 answer:
Flura [38]3 years ago
3 0
Genetics will change in each generation depends on who the mother/father has offsprings with, they kids will get genetics from both parents and that creates a new set of genetics for their offspring
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An object from space burning up as it enters the atmosphere of a planet
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What type of immunity exists when a person is exposed to an antigen and subsequently makes antibodies against the antigen?
Anni [7]

Acquired immunity is the type of immunity that exists when a person is exposed to an antigen and subsequently makes antibodies against the antigen.

Immunity is the defense mechanism of the nervous system to avoid pathogens affecting the body and making it sick. There are two major types of immunity: innate and acquired. Innate immunity is the kind of immunity present in the human body by birth. Whereas, acquired immunity is gained over time.

Acquired immunity specifically promotes the antibodies or lymphocytes to inhibit the action of pathogens when it encounters one. It is further categorized into two types: active and passive immunity.

Active immunity indulges in the primary response to a pathogen. It produces antibodies to fight against it and preserves some to fight against the same pathogen encountered for the second time. Passive immunity, in addition, involves the medications prescribed to enhance immunity.

To know more about acquired immunity, refer to the following link:

brainly.com/question/26864713

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7 0
2 years ago
A mutation creates a dominant negative allele of a particular gene. The normal allele of the gene encodes a protein that forms a
Wewaii [24]

Answer:

87.5% of the trimers in the cell will be inactive.

Explanation:

A monomer is a single subunit. Look at an easy comparison. If a monomer is a ball. For the protein to be functional, it needs to be a trimer .A trimer = 3 monomers joined / bound together with bonds. Therefore, if a monomer is a ball, we need 3 balls, we attach it together and that is the primer . if one ball becomes missing, that protein won't work .

In chemistry, a trimer is regarded as three molecules or ions of the same substance (that is, same type) which are associated together .

Double negative : Each gene has 2 alleles. So, for a positive protein, both allele needs to be same, let's say + means on. So for a x protein , if it's x+/x+ it means the protein is homozygous and active. If for some mutation, it's x+/x- , it's a heterozygous protein. Double negative means when it is x-/x- and this means the protein has lost is function . It's not functional at all.

The heterozygous cell will form one or more subunits has the mutant structure when the gene is expressed. From the question if there is a mutation in dominant negative allele, it will cause the inactivation of one trimer resulting in 87.5% inactive trimers for a heterozygous individual.

There are 87.5 % percent of the trimers present in the cell which will be inactive for a heterozygous individual, If at least one of the subunits has the mutant structure.

The probability for each individual subunit to be a mutant is 1/2

Gene codes for a protein that forms trimer so the percentage of the trimers present in the heterozygous individual is third power of 1/2 =1/8

1/8=0.125 will be active.

1- 0.125 will be inactive.

=0.875 will be inactive.

0.875 × 100= 87.5%

Therefore 87.5% will be inactive.

8 0
3 years ago
A plant that has two identical alleles at the same gene locus is said to be ______.
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A is the correct answer
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What is NOT a characteristic of saturated fats
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Answer:

A) Fats provide 12 kcals of energy per gram.

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