Hemophilia is a blood clotting disorder that is a sex-linked trait carried on the X chromosome. If a woman with hemophilia and a man without the disorder have two sons and two daughters, how many of their children would have hemophilia?

Which activity happens during the s stage of the cell cycle

True or false. Mitosis takes place during m phase of the cell cycle

A vegetarian who doesn't eat eggs or milk should supplement the diet with this mineral. 1. Potassium 2. Sodium 3. Iron c

What is andesite luster

Why was modern classification invented? Traditional classification could not classify all living things. Scientists realized related organisms do not share similar characteristics. Scientists understood that species share a common ancestor.

What effect on the evolution of mammals was caused when the continents drifted apart?

What does the bacterial cell, human cell and plant cell have in common?

Which of the following correctly identifies the purpose of the ribosomes? A: Ribosomes are responsible for the cell division B: Ribosomes contain all the genetic material found in the cell C: Ribosomes are where most proteins are constructed in the

Which of the following statements is true? (a) Phospholipids will spontaneously form liposomes in nonpolar solvents. (b) In eukaryotes, all membrane-enclosed organelles are surrounded by one lipid bilayer.

Which type of rock is created when lava cools and hardens? A. igneous B. sedimentary C. metamorphic D. cement