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vaieri [72.5K]
3 years ago
12

Which of the following statements about the nitrogen cycle is false?

Biology
1 answer:
stiks02 [169]3 years ago
3 0

Answer:

Ans. (1) For preparing vaccines, in olden days,microbes were injected in the bodies of horses ormonkeys. These laboratory animals used to makeantibodies to defend these microbes. Antibodies areproteins which can act against the disease-causinggerms. These antibodies were extracted from theblood of these animals and were used as vaccines.(2) Now-a-days with the advent of biotechnology,the vaccines are manufactured in laboratories withthe help of bacteria. For this purpose, a detailedstudy of the disease causing germ is undertaken.The genes and the DNA of such microbes arethoroughly explored. Then based on thisinformation, proteins which can act against suchmicrobes are synthetically prepared in thelaboratories. The safe vaccine is produced in such away which can defend the body against infections.3) Some types of vaccines are prepared from theextracts of germs. These germs or microbes aredeactivated and made dormant. When they areinjected in the body of a person, they initiate thedefending action. The body of such vaccinatedperson, already develops the antibodies in his or herbody. When in future, this person is again attackedby similar germs the defence starts immediately andthe person does not become sick.

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Assume that the mother's genotype is AZ/az, and the father's genotype is Az/aZ, and the recombination rate is 10%. What are the
Varvara68 [4.7K]

Answer:

.45 from mom, .05 from dad

Explanation:

Given that:

the mother's genotype is AZ/az

i.e AZ = 50%

az = 50%     (parental)

But  we  were also told that the recombination rate is 10% which will like wise affect the mother's genotype

So 100% -10% = 90 % of the mother's genotype

We have a new genotype

AZ = 45%

az = 45% (parental)

Therefore the probability of az gamete from the mother = \frac{45}{100}

= 0.45

Similarly; the genotype of the father is:  Az/aZ

This is an heterozygous father who is diploid hence, there is a remarkable presence of two copies of each autosomal chromosome.

Az is the allele of the genes in one chromosomes and aZ is the allele of the genes in the other.

The gametes of this self cross are: Aa, AZ, az, zZ

Therefore; the recombinants are:

AZ

az

Since there are 10% recombinant; then

AZ = 5%

az = 5%

Therefore the probability of az gamete from the father = \frac{5}{100}

= .05

4 0
4 years ago
PLEASE ANSWER QUICK
nevsk [136]
It’s the first one, Atrophic bacteria are responsible for recycling nitrogen, phosphorus and carbon
8 0
2 years ago
Explain how the use of nonrenewable and renewable sources impacts the environment
seropon [69]

Explanation:

Non-renewable energy sources are not just altering our Earth's atmosphere by increasing the amount of greenhouse gas emissions. They also emit a variety of pollutants that affect people's health and the environment. ... When mercury is emitted into the air, it deposits on the ground or in water.

4 0
3 years ago
Read 2 more answers
in pigs notice that there are different numbers of lobes on the right and left lungs. why would this be the case?
Law Incorporation [45]

Fetal pigs' right and left lungs have different numbers of lobes because the left lung needs to really be smaller to make room for the heart.

<h3>Do fetal pigs that will be dissected die?</h3>

Fetal pigs are really the piglets that sows who were slaughtered for the meat industry were still carrying. Instead of being produced and murdered for this reason, these pigs are taken from the uterus of a dead sow. Piglets that aren't utilized for classroom dissections are frequently used as fertilizer or are just thrown away.

<h3>How are human and pig fetuses different?</h3>

The uterus and liver of a fetal pig are different from those of an adult human. Bicornate uterus is what the fetal pig's uterus looks like. To allow for many offspring, the pig uterus features two sizable horns that emerge from the body of the uterus.

To know more about fetal pigs visit:

brainly.com/question/6993343

#SPJ4

7 0
1 year ago
The region of land—approximately 4 km2—a jaguar must roam to collect food would be an example of a(n) ____________
kvv77 [185]

Answer:

Easy. Habitat.

Explanation:

4 0
3 years ago
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