A friend believes that studying the genetics of dead organisms offers little benefit to modern-day humans. Do you agree with this statement?

In the 1950s, when Watson and Crick were working on their model of DNA, which concepts were well accepted by the scientific community? Chromosomes are made up of protein and nucleic acid. Chromosomes are found in the nucleus. Genes are made of DNA.

Which condition is characterized by excessive destruction of circulating red blood cells?

During activities requiring aerobic endurance, A) glycogen and glycolysis are the primary sources of reserve energy B) oxygen debts are common. C) most of the muscle's energy is produced in mitochondria. D) fatigue occurs in a few minutes.

Which is the first step in the life cycle of a plant that reproduces sexually?

What kinds of bonds are possible between carbon and oxygen A) only single bonds B) only double bonds C) single and double bonds D) double bonds and triple bonds

Which best describes the factors that affect a phenotype?

A woman gives birth to a son who has type A blood. She has type AB blood. Which of the following can be concluded from this about her parents' blood types? One of her parents had at least one A allele and the other at least one B allele.

What are the 3 types of relationships between organisms in the same species

Which of the following are outputs for the process of photosynthesis? A. Energy from food and oxygen B. Energy from the sun, carbon dioxide, and water C. Nutrients from food and oxygen D. Food and oxygen

A mineral is made from in the ground