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2 years ago

What is the correct sentence?

Biology

2 answers:

OLEGan [10]2 years ago

7 0

Answer:

Genes code for proteins, and proteins code for traits.

Explanation:

Simplified Response:

Genes direct the synthesis of RNA through transcription and translation. Through these processes, proteins are assembled. These proteins form the structures and functions that make up all living organisms. And therefore, these proteins are responsible for the traits of living organisms as well.

So, that's why the correct choice would be the first option.

Genes --> Proteins --> Traits

lorasvet [3.4K]2 years ago

3 0

Answer: The correct sequence in the expression of a trait is gene > protein > trait (Option B).

Explanation:

During gene transcription, a linear fragment of DNA referred to as a 'gene' is used as template to synthesize a complementary messenger RNA (mRNA) sequence.

Subsequently, this mRNA is then used as template to create a protein by a process called translation.

Moreover, phenotypic traits can be defined as all observable characteristics that an organism has.

The phenotypic traits are largely determined by the expression of either enzymatic or structural proteins, which interact to shape the phenotype of an organism.

In conclusion, the correct sequence in the expression of a trait is gene > protein > trait (Option B).

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If cyanobacteria never evolved during earth's history, how would their absence affect the composition of earth's atmosphere?

Blababa [14]

Cyanobacteria, also known as blue-green algae, are found in vast quantities in fresh and salt water. Cyanobacteria are able to conduct photosynthesis. By utilising energy from the sun, they produce carbohydrates from water and carbon dioxide. As a byproduct, they produce oxygen. So cyanobacteria provided oxygen to the atmosphere that allowed other lifeforms to develop.

3 0

3 years ago

The granite most likely was formed by the process of A) compaction and cementation B) erosion and deposition © heating and metam

Jlenok [28]

Answer:

<u>D) melting and soliditation</u>

Explanation:

Granite is a type of grainy (medium-coarse) igneous rock. These are formed from quartz, alkali feldspar and trace minerals along with plagioclase. Rocks like quartz, form a crystal from magma or as a precipitate near hydrothermal vents.

A type of intrusive igneous rock, granite is formed from its constituents when it molten rock cooled. Larger mineral crystals are associated with slower cooling over time.

3 0

3 years ago

You decide to repeat the Meselson-Stahl experiment, except this time you plan to grow the cells on light 14N medium for many gen

Effectus [21]

Answer:

One band of light density and one band of heavy density.

Explanation:

According to conservative model of replication, the original strands do not separate from each other during replication. Hence, after replication the old strands are together and the new strands are together.

Here, cells were grown in 14N medium first so 14N was used for DNA replication and all DNA molecules had 14N. When the cells were transferred to 15N medium, only 15N was available for replication process. New DNA molecules would be synthesised using 15N (15N15N) and old DNA molecules have 14N (14N14N). Hence, in density gradient one band will be of light density (14N14N) and one band will be of heavy density (15N15N).

5 0

3 years ago

If intrapulmonary pressure was 760 mm hg, what would you expect the intrapleural pressure to be?

Natasha_Volkova [10]

<h3><u>Answer;</u></h3>

756 mm Hg

<h3><u>Explanation;</u></h3>

Intrapleural pressure is the pressure of the air within the pleural cavity, between the visceral and parietal pleurae. This pressure changes during different phases of breathing.

<em><u>Due to certain characteristics of the lungs, the intrapleural pressure is always lower than, or negative to, the intra-alveolar pressure. It remains approximately –4 mm Hg throughout the breathing cycle.</u></em>

<em><u>Therefore; if the intrapulmonary pressure was 760 mm hg then the intrapleural pressure will be (760 -4) mm Hg, that is 756 mm Hg</u></em>

7 0

3 years ago

HELP ASAP

Tamiku [17]

The corresponding strand would be UACUCGGCACGUUUGACA

7 0

3 years ago