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MatroZZZ [7]
3 years ago
10

How is a terrarium similar to a natural ecosystem? how is it different?

Biology
1 answer:
inessss [21]3 years ago
3 0

Answer:Terrarium is actually an artificially made greenhouse glass container where sunlight easily passes through and we give other necessary objects for the plant growth inside the glass container. And our earth is very similar to the terrarium, our mother nature gives all the necessary objects for plant growth. A terrarium is different however, because in a terrarium there are glass walls that collect the moisture and let it drop back down in smaller quantities.

Explanation:

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Nswer
Lera25 [3.4K]

a. The error rate of DNA replication is 1.0 × 10^-8  per base pair. This is considering that a human has approximately 3 billion base pairs where mutations can occur. However, this mutation is kept low by the proof-reading mechanism of DNA polymerases which are 99% efficient.


b. Given that the human genome is 3.2 × 109 bp, this means that there are on average 0.32 new substitutions every time the complete genome is replicated. In humans, there are about 30 cell generations between zygote and egg cells and about 400 cell divisions between a zygote and mature sperm. Thus, in males, the sperm cells have about 128 new mutations and the haploid egg genome has about 10 new mutations for a total of 138 new mutations in every new zygote.


c. Considering the above-mentioned mutation rates of approximately 1 and 2 mutations per 100 million base pairs between generations, then there will be approximately 130 mutations per generation. This means I will probably have about 130 different nucleotide bases from that of my parents.


<span>d. Siblings at an average of 50%, grandparents at an average of 25%; aunts/ uncles at an average of 25%; and  first cousins at 12.5%.
</span>


<span />

<span>f. You  are approximately different from the other random person by one SNP per 1000 bases. The human genome is about 3 Gbps long and therefore about 3 million SNPs among two random people.</span> With about 20,000 genes each having a coding sequence (exons) about 1.5 kb long (i.e. about 500 amino acids long protein on average), the human coding sequence covers 30 Mbp or about 1 percent of the genome. If SNPs were randomly distributed along the genome that will suggest about 30,000 SNP across the genome coding sequence or just over 1 per gene coding sequence.


g. Humans carry on average one to two mutations that, if inherited from both parents, can cause severe genetic disorders or death before reaching reproductive age. These mutations are what are referred to as recessive alleles of a gene.


<span>h. Mosaicism refers to individuals with genetically distinct cell lines that originated from a single zygote, whereas chimerism refers to those who originated from more than one zygote. Microchimerism  is the co-existence of two genetically different cell populations in one organism, of which one occurs in a very low number. </span>






8 0
3 years ago
Levels of activity in the _____ tend to be _____ in the brains of people with schizophrenia than in other people.
GaryK [48]

Levels of activity in the frontal lobe tend to be lower in the brains of people with schizophrenia than in other people.

Frontal lobe is the part of brain located in the anterior portion of brain. It is responsible for cognitive works like memory retention, problem solving, impulse control, emotions, etc. It is the largest of the four lobes of the brain.

Schizophrenia is a disorder of the brain. People with this disorder often misinterpret the reality. The common symptoms of the disease include delusions, hallucinations, disorganized speech and trouble with thinking. The disorder is considered to be caused by the mixed effect of genetics, environment, and alterations in the brain.

To know more about schizophrenia, here

brainly.com/question/23035586

#SPJ4

6 0
2 years ago
In permanent tissues. <br>The cells are living or the cells are dead?
S_A_V [24]
The metabolism that occurs in the cells of the permanent tissue is fairly at a lower rate. The permanent tissue in plants mainly helps in providing support, protection as well as in photosynthesis and conduction of water, minerals, and nutrients. Permanent tissue cells may be living or dead.
8 0
3 years ago
How do adaptations help an organism survive
saw5 [17]
Structural adaptations<span> are physical features of an </span>organism<span> like the bill on a bird or the fur on a bear. Other </span>adaptations<span> are behavioral. Behavioral </span>adaptations<span> are the things </span>organisms do<span> to </span>survive. For example, bird calls and migration are behavioraladaptations<span>.</span>
5 0
3 years ago
Read 2 more answers
The fur color in a colony of mice has been brown for many generations. One gene appears to code for the fur color pigment. In a
creativ13 [48]

Answer:

A mutation in the DNA sequence of the gene for brown fur  

Explanation:

The mutations are capable of changing the encoded protein product, in this case the gene that encodes for the fur color pigment. This mutation may have occurred during mitosis or meiosis divisions.

If it is a spontaneous mutation that occurred in the germinal line (meiosis) and confers an adaptive advantage, it will increase their frequency in the population.

5 0
3 years ago
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