Short tandem repeats. STRs are analyzed using polymerase chain reaction (PCR), a technique for mass-producing sequences of DNA.
Cancer and Tumors...
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Because he has both of the blood types but he can't donate because he has mixed blood
Answer:
False
Explanation:
Digestive system helps us to digest food
Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.