1. Single stranded 2. Deoxyribose
3. Ribose
4. Uracil
5. Thymine
6. Adenine
7. Phosphate group
8. Hydrogen bonds
Which of these are characteristics and components of DNA?

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Jane is blood type a her husband is blood type b. jane is puzzled because their daughter is type o. explain how the daughter inherited a blood type that neither of her parents had explain your answer

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis