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Viktor [21]
2 years ago
12

Which of these is a disease caused by a bacterium? herpes syphilis AIDS Huntington's Disease Which of the following is not a vas

cular plant? conifer fern moss flowering plant
Biology
1 answer:
sleet_krkn [62]2 years ago
8 0
Syphilis is a sexually transmitted disease caused by the bacterium Treponema pallidum.

Moss is not a vascular plant as it does not have a phloem or xylem to transport water and food.
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Is tRNA used during transcription or translation
natita [175]
Translation<span>. The mRNA formed </span>in transcription<span> is transported out of the nucleus, into the cytoplasm, to the ribosome (the cell's protein synthesis factory). Here, it directs protein synthesis. Messenger </span>RNA<span> is not directly </span>involved in<span> protein synthesis − transfer </span>RNA<span> (</span>tRNA<span>) is required for this.</span>
7 0
3 years ago
Read 2 more answers
Which type of succession starts after a natural disturbance in the environment ? (Primary or Secondary)
maria [59]

Answer:

secondary succession

Explanation:

secondary succession occurs after a major natural disturbance in the environment, but the soil is still there afterwards so its faster then primary.

7 0
3 years ago
What are the right ascension and delineation of the vernal and autumnal equinoxes
valkas [14]

Answer:

Autumnal equinox right ascension = 12 hours; declination = 0°; Sun rises at 90° azimuth and sets at 270° azimuth. December solstice right ascension = 18 hours; declination = -23.5° Sun rises at greater than 90° azimuth and sets at less than 270° azimuth.

Explanation:

7 0
3 years ago
When RNA is processed in the nucleus and made ready for transfer out into the cytoplasm for protein synthesis, which of the foll
IRISSAK [1]
Answer:
Letter E - exons are cut from the strand and removed

Explanation:

Letter A and B are incorrect because the poly-A tail and guanine cap are added to the 3’ and 5’ end respectively. They aid in translation of the mRNA, while serving as protection. The poly-A tail is repeated adenine nucleotides, while the guanine cap is a modified guanine nucleotide.

Letter C is incorrect because alternative splicing is one mechanism for generating variation, and is thought to be one of the reasons for why humans have smaller genomes than other organisms and still maintain high complexity. Alternative splicing is incredibly important because it produces more than one transcript from a pre-mRNA.

Letter D is incorrect because introns are the non coding portions of the mRNA. They are excised to make a smaller mRNA transcript, and one that contains all the protein genes.

This letter E is the correct answer, because exons are the coding portions of the mRNA, and are not excised during RNA processing.

Hope that helped! If I made a mistake, please let me know.
8 0
2 years ago
Certain substances pass from the blood in the glomerular capillaries into the ultrafiltrate under normal circumstances. Other su
mafiozo [28]
Normal:
Glucose
Rbc
NaCl
Amino acid
Plasma

Abnormal:
Albumin (protein)
Wbc

Remember that only small molecules can pass from the blood in the glomerular capillaries and this is cause they have thin walls
6 0
3 years ago
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