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Kryger [21]
3 years ago
13

Describe the discoveries that led to the modeling of DNA.

Biology
1 answer:
4vir4ik [10]3 years ago
8 0

Answer:

Chargaff discovered base pairing rules. Franklin took X-ray photographs that revealed that DNA has a spiral structure. This finding helped Watson and Crick create a model of DNA and discover the double-helix.

Explanation:

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avier stepped on a splinter while walking barefoot. The splinter pierced deep into his foot and caused a great amount of pain. W
kykrilka [37]

Answer:

Answered below

Explanation:

On piercing his foot, the pain receptors called nociceptors, found in the skin, are activated. Nociceptors exist at the nerve endings of the primary afferent neurons. Signals travel along the first order neurons which have cell bodies within the dorsal root ganglia of the spinal cord. In the dorsal root ganglia, the signals are taken up at the synapse with the second order neurons which have cell bodies in the nuclei of the cranial nerves within the brainstem. These neurons ascend cranially in the spinothalamic tract to the thalamus. The third order neurons lie within the ventral posterolateral nucleus of the thalamus. They terminate at the somatosensory cortex where the signals are being processed and returned as a sensation of pain.

5 0
3 years ago
A bacterium was found to contain a sequence of atcgggatcct in its genome. a few generations later, the sequence was found to be
Veronika [31]
I believe it would be a Duplication.
5 0
3 years ago
Read 2 more answers
Without crossing over:
gregori [183]

Answer:

D. Genetic recombination would not occur.  

Explanation:

If this did not occur, all individuals would be identical to its parent unless a mutation occurred.

5 0
3 years ago
Mitosis results in the formation of how many cells; meiosis results in the formation of how many cells? see concept 13.3 (page 2
9966 [12]
Mitosis results in the formation of two diploid cells while Meiosis results to the formation of four haploid cells. Mitosis is a process that takes place in the somatic cells; a cell that has doubled its genetic material divides to produce two diploid daughter cells while meiosis is a process that take place in the gamete cells where a doubled cell undergoes two rounds of division producing four haploid cells. 
3 0
4 years ago
WILL MAKE BRAINLIEST!
motikmotik
<span>Some amino acids have multiple different codons that can code for them. So for some point mutations, one wrong nucleotide in a codon may still allow it to code for the same amino acid. For example. Serine has 4 different possible codons which can code for it. UCA, UCC, UCU, and UCG. Note that if the last letter were change in any instance, it would still code for serine. There are MANY other examples for this question; almost all amino acids have more than one codon which can code for it.</span>
6 0
3 years ago
Read 2 more answers
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