The cerebral cortex, limbic system, thalamus, basal ganglia, and hypothalamus make up which part of the brain?.

A specimen collection helps a scientist do an experiment by

Dmitriy789 [7]

Specimen collection is the process of obtaining tissue or fluids for laboratory analysis or near-patient testing.

A specimen collection helps a scientist do an experiment by assembling a large number of samples for comparison. A poorly collected specimen may lead to failure in isolating the causative organism(s) and/or result in the recovery of contaminating organisms.

5 0

3 years ago

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Onion cell and elodea cell

NARA [144]

Both onion and elodea cells had a cell wall and cytoplasm but the onion lacked chloroplasts. 1. Onion is a storage organ for the onion plant. It is underground so it can't do photosynthesis.

4 0

3 years ago

Refer to Fig. 6.4.1 and 6.5.2 for this and the next two questions. The mutation occurs in the DNA, but questions refer to result

aalyn [17]

Answer:

A mutation that changes the first letter to 'C' is called Frameshift mutation.

Explanation:

FRAMESHIFT MUTATION -: A frameshift mutation is a genetic mutation of a number of nucleotides caused by indels (insertions or deletions) in a DNA sequence that is not divisible by three. A frameshift mutation (also called a framing error or a reading frame shift) The addition or deletion may alter the reading frame (the grouping of codons) due to the triplet nature of gene expression by codons resulting in a completely different translation from the root. A frameshift mutation, instead of being added or removed, is not the same as a single-nucleotide polymorphism in which a nucleotide is substituted. In general, a frameshift mutation will cause the reading of the codons to code for various amino acids after the mutation. The first stop codon ("UAA", "UGA" or "UAG") encountered in the series would also change the frameshift mutation. The polypeptide that is formed will be abnormally short or abnormally long, and most likely will not be functional.
Hence, the answer is Frameshift Mutation.

7 0

3 years ago

A segment of dna has 320 nitrogen bases. if 40 of them are cytosine, how many are thymine

NISA [10]

Correct answer - 120 for Thymine.

Why? - 320 Nitrogen bases.
Cytosine = 40, Cytosine = Guanine.
Therefore Guanine = 40.
320 - 80(Cytosine and Guanine)
240.
Adenine and Thymine = ?
Adenine = x and Thymine = x.
2x = 240.
X = 240/2
X = 120.
Adenine 120, Thymine = 120, Cytosine = 40 and Guanine = 40.

8 0

2 years ago

Match the chemical reaction with its correct type.

Sonbull [250]

hope it will help uh.....

6 0

3 years ago

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