Purchase Solution

Chromosomes

Not what you're looking for?

Ask Custom Question

How would a pair of sister chromosomes differ from homologous chromosomes?

If the reproductive cell only has 23 chromosomes, then how come all of our body cells (somatic cells) have 46 chromosomes?

Briefly describe the constituent molecules found within a chromosome. You may use a diagram to illustrate your answer. Reference your sources.

What is a gene? What is a genome? What does a gene do?

How many genes (approximately) does the human genome contain?

Purchase this Solution

Solution Preview

I am not sure what you mean by sister chromosomes. But I have this explanation which I hope might help answer your question.

Homologous chromosomes are similar in all aspects. However, sister chromatids are identical to each other. In the S phase of the cell cycle, the DNA is replicated and an identical copy of the chromatid is made. These two chromatids are then called sister chromatids. Nonsister chromatids are not identical to each other as they represent different but homologous chromosomes. The nonsister chromatid will carry the same type ...

Purchase this Solution


Free BrainMass Quizzes
How Well Do You Know Your Body?

This quiz will assess the different systems of the human body. It will examine everything from the organs to the cellular processes that occur.

Biochemistry Basics

A refresher quiz to test your knowledge of basics concepts of biochemistry.

Feeding Babies

Do you know the science behind feeding babies? Test your knowledge with this quiz.

Understanding the Musculoskeletal system

Introduce and understand basic information how the skeletal system and muscular system work in close concert with one another. And how their interaction between muscle and bone, as they work together to allow us movement.

The Heart

This quiz test the understanding of the heart and some of its parts. It is important to understand how the heart functions and what makes it function.