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My name is Ann [436]
3 years ago
10

Which of these is true of echinoderms

Biology
1 answer:
Kruka [31]3 years ago
4 0
Echinoderms have radial symmetry.
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A poison added to an in vitro translation mixture containing mRNA molecules with the sequence 5′-AUGAAAAAAAAAAAAUAA-3′ has the f
kipiarov [429]

Answer:

The correct answer is c it inhibits the movement of small subunit relative to the large subunit.

Explanation:

According to the question the the poison that is added in vitro translation mixture containing mRNA molecules specific sequence result in formation of Met-lys dipeptide that remains attached to the ribosome.

    This means the translocation step that deals with movement of smaller subunit of ribosome to the next codon(Here to the third codon) is blocked.

3 0
3 years ago
A species of a large brown bear lived in Siberia about a million years ago. Over time, the northern population became white-colo
svp [43]

Answer:

<em>e. speciation</em>

Explanation:

The definition of speciation is:  the evolutionary process by which populations evolve to become distinct species.

In this scenario, the bears that were once of the same species evolved in order to adapt to their environment. Once they evolved, they could no longer produce with each other, as they are now different species.

8 0
3 years ago
A dominant allele masks/hides the effect of a recessive allele.
valkas [14]

Answer: True

Explanation: If you have a dominant allele it will show in the phenotype of the organism. To show a recessive allele you need a recessive pair consisting of only recessive alleles

Hope this helps

5 0
2 years ago
What molecules are required for the Calvin cycle? (3 answers)
Ber [7]

Answer:After the energy from the sun is converted and packaged into ATP and NADPH, the cell has the fuel needed to build food in the form of carbohydrate molecules. The carbohydrate molecules made will have a backbone of carbon atoms. Where does the carbon come from? The carbon atoms used to build carbohydrate molecules comes from carbon dioxide, the gas that animals exhale with each breath. The Calvin cycle is the term used for the reactions of photosynthesis that use the energy stored by the light-dependent reactions to form glucose and other carbohydrate molecules.

Explanation:The Interworkings of the Calvin Cycle

In plants, carbon dioxide (CO2) enters the chloroplast through the stomata and diffuses into the stroma of the chloroplast—the site of the Calvin cycle reactions where sugar is synthesized. The reactions are named after the scientist who discovered them, and reference the fact that the reactions function as a cycle. Others call it the Calvin-Benson cycle to include the name of another scientist involved in its discovery (Figure 5.14).

This illustration shows that ATP and NADPH produced in the light reactions are used in the Calvin cycle to make sugar.

3 0
2 years ago
Read 2 more answers
What is the worse color for photosynthesis?
marin [14]

hot pink......................................

7 0
3 years ago
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