How does excess carbohydrate intake contribute to obesity?

How do you transfer mrna into codons ? i'm so confused : (

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?

Choose the correct words to complete the sentences related to genetic screening. is a procedure that is used during pregnancy to detect genetic defects. is extracted from the uterus and used to identify genetic disorders?