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Alchen [17]
2 years ago
6

China is a country that has been developing its cities, roads , sewage systemsand incereasing the education of womeneconomy is s

ul relying on farming and manufacturingthey have started to offer more services as in industry and have imporved their technolgy and Income for individuals Predict what type of country is China?
Biology
1 answer:
igomit [66]2 years ago
6 0
It is a advance one
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Focus on the evolution of horn size in the Bighorn sheep population from 1950 to present. What would you predict would happen if
dalvyx [7]

Answer:

The correct answer is option e) "Over time, we could see an increase in the H1 allele frequency".

Explanation:

The bighorn sheep (Ovis canadensis) is a species that is a very attractive for hunters because of its long horns. This negative human influence has make that bighorn sheep with long horns struggle to survive and reproduce. Horn size in bighorn sheep is determined primarly by a gene called HRN, which has two alleles H1 (for long horns) and H2 (for smaller horns). if hunting were discontinued for bighorn sheep in a large population we can predict that over time, we could see an increase in the H1 allele frequency, because in this population bighorn sheep with long horns will have better chances of surviving.

6 0
3 years ago
Read 2 more answers
Dracunculus medinensis is a parasite that can grow to be one meter long, and which humans can acquire through contaminated drink
stepan [7]

Answer: Nematoda

Explanation: The Dracunculus medinensis is a parasite that is often referred to as a roundworm. The answer Nematoda is correct because is is the phylum that classifies roundworms and is greek for "roundworms"

4 0
2 years ago
QUESTION 1
Paladinen [302]

Answer:

1. RNA

2. Cytosine and guanine

3. RNA

4. Replication

5. Unwinding the double helix

6. DNA polymerase

7. Identical

8. Repair the DNA

9. Changes in nucleotides of a DNA molecule that affect the genetic message

10. The gene for beta-galactosidase turns off.

11. p53

12. A part of DNA that does not code for a functional protein

13. Proteins

14. Transfer RNA

15. The making of an RNA molecule from a DNA strand by pairing of bases of RNA nucleotides with the complementary bases in DNA

16. 3

17. Tertiary

18. Enzymes

19. The reaction slows down.

20. The active site of an enzyme

21. 60%

22. Conserved energy

23. different

24. Gene expression

I hope that this helps you !

5 0
3 years ago
A cell conducts endocytosis by _____.
kondaur [170]
<span>Phagocytosis and pincytosis </span>
3 0
3 years ago
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A) How does HIV bind to a host cell?
Taya2010 [7]

1. The correct answer is: The viral envelope proteins interact with CD4 and a co-receptor on the cell membrane.

Binding and entering the host cell are the first steps of the HIV virus infection. So, these steps play a major role in determining the ability of HIV to degrade the human immune system. Binding of HIV to CD4+ T lymphocytes (express chemokine receptors CCR5 and CXCR4 called co-receptors) triggers the fusion of the viral and host cell membranes, initiating infection (viral core gets into the cytoplasm).

Attachment of the virion can be:

• Nonspecific-envelop protein of the virus (Env) binds to cell-surface heparan sulfate proteoglycans

• Specific-Env binds to integrin.

2. The correct answer is: Activation of the host cell by cytokines, growth factors, or antigens.

After the viral capsid enters the cell, single-stranded RNA genome is released from the attached viral proteins and copied it into a complementary DNA (cDNA) molecule thanks to an enzyme called reverse transcriptase. Next step is the integration of the viral DNA into the host cell's genome. This process is done by another viral enzyme called integrase. The integrated DNA  is transcribed into RNA and then translated into proteins that will help the package of new viruse particles.

3. The answer is: false

Reverse transcriptase is an enzyme that catalyzes the formation of DNA from an RNA template. Since the genome of the virus (HIV) is single stranded RNA, reverse transcriptase copies it into a complementary DNA (cDNA) molecule. Thanks to this enzyme, formed cDNA can be integrated into host’s genome. Because of this proprety, antiretroviral drugs used to treat HIV infection work as reverse-transcriptase inhibitors.

7 0
3 years ago
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