1 - GENETICS - Mitosis Lesson.pdf

1 - GENETICS - Mitosis Lesson.pdf - Genetics Types of Cell...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 ­ GENETICS­ Mitosis Lesson 1 Genetics Types of Cell Reproduction Asexual Reproduction involves a single cell dividing to make two new, identical daughter cells > based on the process of MITOSIS > examples include: budding; spore formation; binary fission Sexual Reproduction involves two cells (egg & sperm) joining together to make a new cell (zygote) that is NOT genetically identical to the original cells > based on the process of MEIOSIS Chromosomal Organization The hereditary/genetic material in the nucleus of cells is made up of long strand of DNA that are condensed, folded, and in association with proteins, formed into CHROMOSOMES . Prior to undergoing duplication chromosomes are found in the unduplicated form in which they appear as a single strand. Each chromosome must be duplicated prior to the start of mitosis. The original chromosomes and its duplicate are attached to each other by a structure called a centromere . In the duplicated form, a single chromosome appears as two strands and a centromere. These two strands are referred to as sister chromatids .
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
1 ­ GENETICS­ Mitosis Lesson 2 Cells need to divide because … Cells die and need to be replaced Cells reach a maximum size. (In order to grow any larger, an organism needs to create more cells.) Organisms need to create offspring to continue the population of a species.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern