Garantie de satisfaction à 100% Disponible immédiatement après paiement En ligne et en PDF Tu n'es attaché à rien
logo-home
Recherché précédemment par vous
Recherché précédemment par vous
logo
Samenvatting - Cancer biology (BIOMRE09/course 10) €10,49
Ajouter au panier
Accédez rapidement à
Aperçu
  2.  
  3. Hogeschool Arnhem En Nijmegen (HAN)
  4.  
  5. Cancer biology (BIOMRE09)

Resume

Samenvatting - Cancer biology (BIOMRE09/course 10)

1 vérifier
 2 fois vendu
  • Cours
  • Cancer biology (BIOMRE09)
  • Établissement
  • Hogeschool Arnhem En Nijmegen (HAN)

Dit is een samenvatting van course 10/BIOMRE09 van cancer biology op de HAN. Het bevat 7 weken aan lesstof over o.a. developmental biology, genetics, cell cycle regulation en embryogenesis. Dit is alle toetsstof die je moet weten!

Aperçu 4 sur 41  pages

Infos sur le Document

  • 26 mai 2024
  • 41
  • 2023/2024
  • Resume

Sujets

  • developmental biology
  • cancer biology
  • signalling pathways
  • genetics
  • cell cycle
  • embryogenesis

École, étude et sujet

  • Hogeschool Arnhem en Nijmegen (HAN)
  • Biomedisch laboratorium
  • Cancer biology (BIOMRE09)
Tous les documents sur ce sujet (1)

1  vérifier

review-writer-avatar

Par: ceren_ilbay1999 • 3 mois de cela

Traduit par Google

copied almost everything from the slides

Vendeur

avatar-seller
elinehamersma

Avis reçus

Aperçu du contenu

Cancer biology

Week 1

Preformationism = the belief that an organism’s development and growth were
predetermined only by its genetic material, wit hall structures and organs present in an
undeveloped form within the egg or sperm

Epigenesis = an organism’s development is shaped by the interaction of genes with
environmental factors, and that new structures and organs emerge gradually over the
course of development



Organisms have common genetic developmental plans

Development of the embryo goes through stages that
represents evolution of the ancesters




The tree of life → there is a common ancester, therefore we share DNA with other organisms

Several “model” organisms are used to study these “common developmental plans”




Model means “something that serves as a pattern” to understand how a biological process is
determined and orchestrated

Developmental biology as a discipline to study differentiation, growth and morphogenesis

- Organisms do not spring forth fully formed
- Development begins with a single cell → fertilized egg, or zygote (fully undifferentiated cell)
- The zygote divides mitotically to produce even more specialized cells of the sculpted
organism (differentiation)
- They arise by a relatively slow process of progressive change (growth and morphogenesis) →
development

Undifferentiated cell has the potential to develop into any cell of the organism

Cell differentiation = process by which a single cell becomes a specialized cell type with specific
functions in the body (muscle cells, nerve cells and blood cells) eacht with its own unique
characteristics and functions

Morphogenesis = the creation of a high ordered organism

,An animal’s life cycle: embryogenesis




Embryogenesis = process of
development of an embryo
from fertilization of the egg by
sperm until it becomes a
mature organism




1. Fertilization: process of the male + female gamets (sperm + egg) to a zygote, the 1st cell of a
new organism. It marks the beginning of embryonic development



2. Cleavage: process of cell division that occurs during the early stages of embryonic
development, where the zygote (single cell) divides into multiple smaller cells (blastomeres)
without increasing in size. This process forms the morula (solid ball of cells), which eventually
develops into a blastocyst (a fluid-filled structure that implants into the uterus and forms the
placenta)

3. Gastrulation: development process that occurs in the early stage of embryonic development
in animals. It results in the formation of 3 germ layers (ecto-, meso-, endoderm), which will
give rise to different parts of the body. This process is crucial for the formation of the basic
body plan

4. Organogenesis: process of forming/developing organs in a developing organism. It occurs
during embryonic development and involves the formation of specific tissues and the
differentiation of cells into specific cell types, leading tot he formation of ucntional organs

,Mitosis and meiosis

Mitosis and meiosis are two different cell division processes that
differ in their purpose and mechanism:

1. Purpose: mitosis is used for asexual reproduction, cell
growth and tissue repair.
Meiosis is used for sexual repoduction
2. Number of daughter cells: mitosis produces two identical
daughter cells with the same number of chromosomes as
the parent cell.
Meisosis produces 4 non-identical
daughter cells with half number of
chromosomes as the parent cell
3. Chromosome distribution: mitosis chromosomes are distributed equally to daughter cells.
Meiosis chromosomes are distributed randomly to daughter cells,
leading genetic diversity → mendel’s law of independent segregation
4. Stages: mitosis: prophase, metaphase, anaphase and telophase
Meiosis: prohase (I, II), metaphase (I, II), anaphase (I, II), Telophase (I, II), cytokinesis
(I, II)

Meiosis: formation of haploid cells


Oogenesis Spermatogenesis




Mammals
Stop cell cycle → continue when fertilization

Fertilization: diploidy and restauration of the cell cycle

, Calcium = red → spreading in egg after fertilization

➔ This is the restart of cell cycle + blocks the entry of other sperm cells
(poly spermcells)




Fertilization: symmetry breakage

In C. elegans, the entry of
sperm during fertilization determines the axis of
asymmetry in the developing embryo. This process
is called "symmetry breaking."

The sperm entry point determines which end of the
zygote will become the head and which will become
the tail → crucial process for the proper
development of the organism + the establishment
of its anterior-posterior asymmetry.

After the first cell division: anterior cell (AB) is
always bigger and will always give rise to its
daughter cells (Aba and Abp), while the posterior
cell is always smaller and give rise to other daughter
cells (EMS and P2).

The rising of two non-identical cells after cell division is the consequence of an
asymmetric cell division, which usually occur in stem cells



Cleavage: patterns diverge for different organisms

Hoboblastic cleavage = the division of the entire egg
into smaller cells, resulting in a group of cells →
blastula

Meroblastic cleavage = partial division of the egg, resulting in a smaller mass of cells
attached to the yolk

Les avantages d'acheter des résumés chez Stuvia:

Qualité garantie par les avis des clients

Qualité garantie par les avis des clients

Les clients de Stuvia ont évalués plus de 700 000 résumés. C'est comme ça que vous savez que vous achetez les meilleurs documents.

L’achat facile et rapide

L’achat facile et rapide

Vous pouvez payer rapidement avec iDeal, carte de crédit ou Stuvia-crédit pour les résumés. Il n'y a pas d'adhésion nécessaire.

Focus sur l’essentiel

Focus sur l’essentiel

Vos camarades écrivent eux-mêmes les notes d’étude, c’est pourquoi les documents sont toujours fiables et à jour. Cela garantit que vous arrivez rapidement au coeur du matériel.

Foire aux questions

Qu'est-ce que j'obtiens en achetant ce document ?

Vous obtenez un PDF, disponible immédiatement après votre achat. Le document acheté est accessible à tout moment, n'importe où et indéfiniment via votre profil.

Garantie de remboursement : comment ça marche ?

Notre garantie de satisfaction garantit que vous trouverez toujours un document d'étude qui vous convient. Vous remplissez un formulaire et notre équipe du service client s'occupe du reste.

Auprès de qui est-ce que j'achète ce résumé ?

Stuvia est une place de marché. Alors, vous n'achetez donc pas ce document chez nous, mais auprès du vendeur elinehamersma. Stuvia facilite les paiements au vendeur.

Est-ce que j'aurai un abonnement?

Non, vous n'achetez ce résumé que pour €10,49. Vous n'êtes lié à rien après votre achat.

Peut-on faire confiance à Stuvia ?

4.6 étoiles sur Google & Trustpilot (+1000 avis)

64670 résumés ont été vendus ces 30 derniers jours

Fondée en 2010, la référence pour acheter des résumés depuis déjà 15 ans

Commencez à vendre!

Récemment vu par vous

Examen ·

(0)

BIO 235 Assignment 2 Questions and Answers 100% Pass

Examen ·

(0)

EMT FISDAP READINESS EXAM 4 LATEST 2024 ACTUAL EXAM

Examen ·

(0)

F-60 Fire Guard Exam mobile 7 Questions And Answers

Examen ·

(0)

RECA Residential Exam With 100% Correct Answers 2024

Resume ·

(2)

LCI KNO samenvatting voor operatieassistenten

Examen ·

(0)

Ohio Driving School Final Exam Study Guide Graded A+

Examen ·

(0)

CO Real Estate VanEd Questions and Answers 100% Pass

Examen ·

(0)

FBLA FUTURE BUSINESS LEADER EXAM 100% VERIFIED

Examen ·

(1)

AGACNP 106 exam 2023 with 100% correct answers

€10,49  2x  vendu
  • (1)
Ajouter au panier
Ajouté