All categories

4 years ago

If the same base pairs are used to code for all organisms why is there so much variation among organisms

Biology

2 answers:

laila [671]4 years ago

5 0

The list of answers ? I don’t know of the top of my head with just the question

Eva8 [605]4 years ago

4 0

Answer:

The right answer to this question is: different codons sequences

Explanation:

The production of a protein is a little bit complex, it all starts on the nucleus of a cell, with the polimerase RNA reading a single ribbon of DNA, making new base pairs, matching them and changing Thymine to Uracil. After that, outside the cell, this mRNA will be read in the ribosome again, but now specifically, to one function, based on codons. Codons are a sequence of 3 nucleotides, but they're not random, it depends of what the body needs to survive.

That's why there's so much variation, for example, we don't have the same needs as a butterfly, or a shark, they produce different codons and by that way they can develop their characteristics.

You might be interested in

Tspan8 and Tspan8/CD151 knockout mice unravel the contribution of tumor and host exosomes to tumor progression

Eduardwww [97]

The tetraspanins Tspan8 and CD151 promote metastasis, exosomes (Exo) being suggested to be important in the cross talk between tumor and host. The contribution of Tspan8 and CD151 to host versus tumor-derived exosome (TEX) activities being not defined, we approached the questions using 3-methylcholanthrene-induced (MCA) tumors from wt, Tspan8ko, CD151ko and Tspan8/CD151 (db)ko mice, implanted into tetraspanin-competent and deficient hosts.

Methods:

Tumor growth and dissemination, hematopoiesis and angiogenesis were surveyed in wild type (wt), Tspan8ko, CD151ko and dbko mice bearing tetraspanin-competent and -deficient MCA tumors. In vitro studies using tumor cells, bone marrow cells (BMC) and endothelial cells (EC) elaborated the mechanism of serum (s)Exo- and TEX-induced target modulation.

Results:

Tumors grew in autochthonous and syngeneic hosts differing in Tspan8- and/or CD151-competence. However, Tspan8ko- and/or CD151ko-tumor cell dissemination and settlement in metastatic organs was significantly reduced in the autochthonous host, and less severely in the wt-host. Impaired wt-MCA tumor dissemination in the ko-host confirmed a contribution of host- and tumor-Tspan8/-CD151 to tumor cell dissemination, delivery of sExo and TEX being severely impaired by a Tspan8ko/CD151ko.

Conclusions:

Tspan8-/CD151-TEX play central roles in tumor progression. Tspan8-/CD151-sExo and TEX contribute by stimulating angiogenesis. Tspan8 and CD151 fulfill these tasks by associating with function-relevant proteins, the additive impact of Tspan8 and CD151 relying on differences in preferred associations. The distinct Tspan8 and CD151 contributions suggest a blockade of TEX-Tspan8 and -CD151 promising for therapeutic intervention.

Learn more about tumor progression :

brainly.com/question/11710623

#SPJ4

4 0

2 years ago

A team of geologists is surveying glaciers on a mountain. They come across a newly formed stream. The stream is flowing at an av

jasenka [17]

Index fossils (also known as guide
fossils, indicator fossils or zone
fossils) are fossils used to define
and identify geologic periods (or
faunal stages).

5 0

3 years ago

Read 2 more answers

Explain the difference between periods and groups and what each tells you about the atom

Rasek [7]

Answer:

Groups and periods are two ways of categorizing elements in the periodic table. Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period.

4 0

3 years ago

Read 2 more answers

Which of these characteristics is often used as a measure of an ecosystems health? A. The variety of species that lives there B.

dmitriy555 [2]

Answer:

Explanation:

Because the more species that live their can determine how well the environment is doing.And that their is enough resources for them to survive.

5 0

3 years ago

I need help with this

lord [1]

A. interphase

B. prophase

C. metaphase

D. anaphase

E. telophase

sorry for the wait once again

1. centrosomes

2. spindle poles

3. sister chromatids

4. kinetochore

5. cleavage furrow

6. nuclear envelope

7. mitotic spindle

8. cohesion proteins

9. chromosomes

10. condensed

5 0

2 years ago