Huntington's disease (hd) is a neurodegenerative genetic disorder involving an autosomal dominant mutant allele with high penetrance. if a father's mother had hd, what is the probability that his first child will also have hd?

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

Explain why ecosystem diversity results in species diversity in a healthy biosphere