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ludmilkaskok [199]
3 years ago
8

The main source of organic matter in soil

Biology
1 answer:
iragen [17]3 years ago
3 0

plants (living and dead) is the main source
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A certain Drosophila protein-encoding gene has one intron. If a large sample of null alleles of this gene is examined, will any
Alex

Answer:

a) Yes

b) Yes

c) Yes

d) Yes

Explanation:

a. In the exons?

Yes mutant site will be expected. It will transcript-ed as well and it can be a polypeptide depending on the mutation type.

b. In the intron?

Yes mutant site will be expected. It will be transcript-ed as well and it cannot be a  polypeptide  

c. In the promoter?

Yes mutant site will be expected. It will not be transcript-ed and it cannot be a  polypeptide

d. In the intron-exon boundary?

Yes mutant site will be expected. It will be transcript-ed and it cannot be a  polypeptide

3 0
3 years ago
The eye is an organ.why?<br>Skin is an epithelial tissue.why?<br>​
Brilliant_brown [7]

Answer:

"The organs have blood vessels as well as the nerves in it, the organ is also present within the organ motif is also being executed in these organs. So as eye. Epithelial tissue helps in protection against the microbes so as skin having different layers."

Explanation:

Eye is an organ because, the organs have blood vessels as well as the nerves in it, the organ is also present within the organ motif is also being executed in these organs. Similarly, inside the eyeball there is an organ which is known as retina, with is connected with the neural and epithelial tissue which helps in detection of the light which enters into the eyeball.

Skin is an epithelial tissue because, epithelial tissue helps in protection against the microbes. Similarly skin is composed of different layers of epithelial tissue which is also supported by the layers of connective tissue, helps in protection of internal organs from damage as well as dehydration.

3 0
3 years ago
Outer boundary of the cell in a Plant cell
Alexandra [31]

Answer:

cell wall

Explanation:

Cell wall is the outermost boundary in plant cell whereas plasma membrane or cell membrane is the outermost boundary in animal cells. In a plant cell, cell membrane is found in the inner side of the cell wall.

5 0
2 years ago
Read 2 more answers
1. Which of the following accurately describes a typical human karyotype?
yuradex [85]
<span>Human cells contain 23 chromosomes and has a total of 46 pairs of chromosomes. The answer is letter A. Depending on the length and morphology, it has seven groups. They are arranged from largest to smallest. It has 22 pairs of homologus chromosomes known as autosomes and 1 pair of sex chromosomes, a total of 23 chromosomes. A male karyotype has a total of 46 chromosomes and gives a pair of XY while a female karyotype has a total of 46 chromosomes and gives a pair of XX. These pairing are responsible to the gender of the offspring.</span>
6 0
3 years ago
a versatile cas12k-based genetic engineering toolkit (c12kget) for metabolic engineering in genetic manipulation-deprived strain
sveta [45]

versatile cas12k-based genetic engineering toolkit (c12kget)

  • Genetic modification of micro-organisms is conducive to the selection of high production producers of high-value-added chemicals, but a deficient  of genetic tools limits the industrialization of most wild species
  • It is very important  to develop host-independent gene editing tools which can be used for genetic modification  deprived strains.
  • A easily found  Cas12k-based genetic engineering toolkit (C12KGET) that can result into genomic integration of small parts up to 10 kb in size with up to 100% efficiency in challenging strains.
  • By using  C12KGET, we accomplished the first example of highly efficient genome editing in Sinorhizobium meliloti, which was successfully solved the question of  that industrial strains are difficult to genetically modify, and increased vitamin B12 production by 25%.
  • Cas12k can be directly used for transcriptional regulation of genes with up to 92% efficiency due to its naturally inactivated nuclease domain

To know more about  genetic engineering      visit : brainly.com/question/13491558

#SPJ4

4 0
1 year ago
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