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kicyunya [14]
4 years ago
6

Which test is used to detect down syndrome by collecting blood from the umbilical cord after the 18th week of pregnancy?

Biology
1 answer:
Licemer1 [7]4 years ago
8 0
Fetal Blood Sampling.
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The system that enables 4 nucleotides to dictate the sequences of millions of proteins is called the __________.
alekssr [168]

Answer:

Genetic code

Explanation:

Genetic code refers to the set of rules by which the information encoded in the genetic material is translated into the proteins. The genetic code is present on the genes in the form of triplets of nucleotides  called codons which specifies the specific amino acid.

The codon system of the genetic code rules allows the 4 different nucleotides to form specific amino acids by the combination of the four different nucleotide in the triplets.

Thus, Genetic code is the correct answer.

8 0
3 years ago
Before an impulse can cross the synaptic gap between neurons, the impulse must be
Alborosie

In order for an impulse to cross the synaptic gap between the neurons, the impulse must be converted into a chemical signal as this will allow it to exert effects and to be able to travel in distances such as having to cross the synaptic gap between the neurons.

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3 years ago
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Jane can do a few things to prevent the spread of illness:

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Hope this helps

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In which two locations does cellular respiration occur? a: chloroplast b: cytoplasm c: nucleus d: mitochondrion e: plasma f: mem
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D) mitochondrion
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