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kogti [31]
1 year ago
10

How do vaccines work if the pathogen in them is dead?

Biology
1 answer:
Gnesinka [82]1 year ago
4 0

Answer:

Inactivated vaccines use the killed version of the germ that causes a disease.

Inactivated vaccines usually don't provide immunity (protection) that's as strong as live vaccines. So you may need several doses over time (booster shots) in order to get ongoing immunity against diseases.

Explanation:

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stellarik [79]

Answer: The daughter cells develop after the cell division will have unequal number of chromosomes.

Explanation:

The interphase is the stage of the cell cycle in which the parent cell prepares itself for division. It increases in size and develops organelles for cell division. Before the cell division the replication of the genetic material in the form of DNA is necessary so that both daughter cells receive equal amount of genetic material after the cell splits by mitosis. Mitosis is a cell division in which the parent diploid cell splits into two haploid daughter cells. Each daughter cell receives the half the chromosomes as that of the parent cell.

8 0
2 years ago
Sperm cells and egg cells are____
saw5 [17]

Answer:

haploid and contain 23 chromosomes

Explanation:

The term haploid can also refer to the number of chromosomes in egg or sperm cells, which are also called gametes. In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells.

8 0
3 years ago
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7 0
2 years ago
What is NOT true about the evidence that fossils provide?
aleksandrvk [35]

Answer:

C. All fossils contain intact DNA that can be sequenced.

Explanation:

Fossils are the impression, trace or preserved remains of once-living thing from past thousands of years such as bones, exoskeletons, objects preserved in amber, and stone imprints of animals or microbes.

Fossils provide evidence about seevral characteristics and features of extinct organism such as evolutionary relationship between organisms and  transitional forms between groups of organisms. but all the fossil do not provide evidence about the intact DNA that can be sequenced because some fossils carry DNA rumnants which do not have the ability to get sequenced.

Hence, the correct option is C.

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2 years ago
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