Explanation:
<em><u>DNA</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>negatively</u></em><em><u> </u></em><em><u>charged</u></em><em><u>,</u></em><em><u> </u></em><em><u>therefore</u></em><em><u>,</u></em><em><u> </u></em><em><u>when</u></em><em><u> </u></em><em><u>an</u></em><em><u> </u></em><em><u>electric</u></em><em><u> </u></em><em><u>current</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>applied</u></em><em><u> </u></em><em><u>to</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>gel</u></em><em><u>,</u></em><em><u> </u></em><em><u>DNA</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>migrate</u></em><em><u> </u></em><em><u>towards</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>positively</u></em><em><u> </u></em><em><u>charged</u></em><em><u> </u></em><em><u>electrode</u></em><em><u>,</u></em><em><u> </u></em><em><u>Shorter</u></em><em><u> </u></em><em><u>strands</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>DNA</u></em><em><u> </u></em><em><u>move</u></em><em><u> </u></em><em><u>more</u></em><em><u> </u></em><em><u>quickly</u></em><em><u> </u></em><em><u>through</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>gel</u></em><em><u> </u></em><em><u>than</u></em><em><u> </u></em><em><u>longer</u></em><em><u> </u></em><em><u>strands</u></em><em><u> </u></em><em><u>resulting</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>fragments</u></em><em><u> </u></em><em><u>being</u></em><em><u> </u></em><em><u>arranged</u></em><em><u> </u></em><em><u>in</u></em><em><u> </u></em><em><u>order</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>size</u></em><em><u>.</u></em><em><u> </u></em>
Hope it helped of it did mark as brainliest!
Answer:
The endocrine system is a collection of specialised organs (endocrine glands) scattered throughout the body that act to produce hormones.
Explanation:
Hello! The best answer would be C - Colds because bacteria can reproduce and spread rapidly, which is why a cold sometimes develops fast. As for the others, your body is just adjusting to the weather with A, B is a sexually transmitted disease which is caused from contact with another through sex, D is caused by sweets/certain foods that break down your teeth. I hope I helped you!! Have a great day!!
Topographic maps and satellite images
Explanation:
A topographic map represents earth's surface features like land forms and structures, rivers and lakes, mountains and hills, elevations and other natural features along with man-made artificial features like cities, buildings, monuments, roads, bridges etc. These are formed by contour lines.
Topographic maps are printed with revision dates to observe the changes happening on the Earth's surface. Various land forms keeps changing due to natural and man-made causes and these needs to be updated accordingly to provide accurate details.
A satellite image provides details of the earth aerially from space. These provides details of a land form or any earth structure currently.
By comparing with older satellite images or topographic maps with the current one, the changes which occurred over time can be observed.
Answer:
Ultrasound scan to rule out polyps or endometrial hyperplasia of the uterus
Explanation:
