Answer and Explanation:
If an objective lens of 400x has a DFV of 500цm
then what would be the DFV of 1000x=?
1000*500/400
=1250цm
1mm=1000цm
? = 1250цm
1250*1/1000
=1.25mm
B
DNA does not move from the limits of the nuclear membrane. The genetic information on the DNA strand is translated into proteins through the mediation of messenger-RNA. DNA is transcribed into mRNA that crosses the pores of the nuclear membrane to the cytoplasm. The mRNA directs how the ribosomes will manufacture particular proteins based on the coded information from the DNA.
Explanation:
The nuclear membrane protects the genetic material by regulating the types of substances that can cross into and out of the nucleus. This ensures that DNA maintains its integrity which is critical for the proper function of the cell.
Learn More:
For more on the significance of the nuclear membrane check out;
brainly.com/question/1593437
brainly.com/question/9367134
brainly.com/question/7320002
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C) K ( potassium)
Explanation:
Small non-charged molecules like CO2, H2O, O2 can pass through the membrane freely.
But others such as K+ require specific potassium bumps throughout the membrane. Which acts to transport Na+ and K+ cross the membrane.
When scientists measure, they use the metric system.
I believe it is B
Explanation: a chemical change happens when one chemical substance is transformed into one or more different substances. (Such as iron becoming rust)