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Lesechka [4]
2 years ago
8

Can you pls pls help me?

Biology
2 answers:
defon2 years ago
8 0

Answer:D

Explanation:

ValentinkaMS [17]2 years ago
5 0

Answer:

the last one because

Explanation:

matter is not created or destroyed so everything that you put in the solution will make up the mass

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3.What is the difference between a dominant and a recessive trait?
Andreyy89

Answer:

Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive.

Explanation:

6 0
3 years ago
If adenine didn’t always pair with thymine and guanine didn’t always pair with cytosine, the new DNA ladders wouldn’t always be
zloy xaker [14]

Answer:

they wouldnt be identical because for example Guanine could be paired with thymine in the original DNA strand but could decide to pair with adenine in the replication DNA. that would make a different type of DNA.

Explanation:

DNA replication is a beautiful process. In DNA replication adenine only pairs with thymine and guanine only pairs with cytosine. this ensures that a replication of the DNA will be the same type of DNA.

Replication works like this. Helicase splits open the DNA and each side is copied by DNA polymerase. If let's say the nucleotide bases for side 1 are ATGCGA then the DNA polymerase will pair these with the matching bases TACGCT which will make the same DNA but if each base could pair with any base they want that could create a few different variations of the original DNA. ATGCGA could very well be paired with TCGACA or CGACTA which would created two different types of DNA.

3 0
3 years ago
12. Removing an organism from an ecosystem will have which of the following affects? Select all that apply.
lutik1710 [3]

Answer:

B and D

Explanation:

Biodiversity comes from having multiple types of organisms. This also allows different organisms to eat and create nutrients that is needed by all other organisms in the ecosystem.

4 0
3 years ago
When you describe a person as having attached ear lobes, you are describing their genotype.?
Alik [6]
Having attached earlobes is their phenotype. their genotype are the alleles that code for that
8 0
3 years ago
When looking at an active metabolite of a medication, such as 9-hydroxyrisperidone (paliperidone), how does it differ from the p
cluponka [151]

Paliperidone has low affinity for lipid-rich environments compared from the parent compound risperidone. Due to its hydrophilicity characteristic, paliperidone is capable of hydrogen bonding with other molecules containing water and hydroxyl groups. Lipophilicity is a determining factor for the rate and degree of metabolism of the drug in the body and for crossing the blood–brain barrier (BBB).

Moreover, these differences are implicated in synaptic plasticity and neuronal firing effects in the mechanism of mitochondrial movement, protein expression, and phosphorylation of the drug. Paliperidone as a mood stabilizer is an active metabolite of risperidone with antipsychotic effects used for the treatment of schizophrenia and its associated disorders.

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8 0
3 years ago
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