Golgi bodies produce, package, and deliver a product in pinched-off vesicles.
Explanation:
When enough proteins have been created a vesicle is pinched off of the membrane. This development of vesicle then moves through the cytoplasm from the endoplasmic reticulum to the Golgi apparatus. ... The contents of the secretory vesicle are released to where they are required within the cell. The Golgi apparatus collects simple molecules and connects them to make molecules that are more complex. It then takes those big molecules, packages them in vesicles, and unless store them for later use.
in the lysosomes
B.
in the nucleus
C.
inside the chloroplasts
D.
on the cell wall
Greenhousegases are added to the atmosphere through forestfires. The correct option is A.
Greenhousegases are gases the gases which basically trap heat in the earth's atmosphere. The sun shines through the atmosphere during the day, warming the earth's surface.
The earth's surface cools at night, releasing heat back into the atmosphere. However, some of the heat is trapped in the atmosphere by greenhouse gases.
Greenhousegas emissions have far-reaching environmental and health consequences. They contribute to respiratorydisease due to smog and air pollution, and they cause climate change by trappingheat.
Other effects of climate change caused by greenhousegases include extreme weather, food supply disruptions, and increased wildfires.
Carbon dioxide, methane, nitrousoxide, hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs), and ozone are the main greenhouse gases whose concentrations are increasing in the loweratmosphere.
Thus, the correct option is A.
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Vaccines have a tiny amount of the virus/disease/etc that is going to prevent you from that, this is injected into you and it will work due to injecting a dead cell of that disease into your body.
B. extra chromosome 21
C. missing sex chromosome
D. extra sex chromosome
Trisomy 21 look like in a karyotype as B. extra chromosome 21
In the first part of the twentieth century, there was much speculation of the cause of Down syndrome. In 1959 Jerome Lejeune and Patricia Jacobs, who working independently, first determined the cause to be trisomy (triplication) of the 21st chromosome. Down syndrome (DS / DNS), also known as trisomy 21 is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. Trisomy 21 is the most frequent viable chromosome disease. In Down syndrome, 95% of all cases are caused by the condition in which one cell has two 21st chromosomes instead of one, so the resulting fertilized egg has three 21st chromosomes. Hence it named as the scientific name trisomy 21.
Three to four percent of all cases of trisomy 21 are due to Robertsonian Translocation in which two breaks occur in separate chromosomes, usually the 14th and 21st chromosomes. There is rearrangement of the genetic material so that some of the 14th chromosome is replaced by extra 21st chromosome. Picture below showed the the karyotype of a male with trisomy 21.
Grade: 9
Subject: Biology
Chapter: Karyotypes
Keywords: Karyotypes
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