Категории: Все - genetics - cells - inheritance - blood

по SB - 11WS 649559 Louise Arbour SS 4 лет назад

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Grade 11 Biology - SBI3U0-18

The study of genetics focuses on how traits and characteristics are passed from one generation to the next. Gregor Mendel, a monk and scientist, laid the foundation for this field through his experiments with pea plants in the 1800s.

Grade 11 Biology - SBI3U0-18

Grade 11 Biology - SBI3U0-18

Genetics - The study of Heredity

Gene Crosses
Monohybird

Creating a cross about one trait for 2 biotic structures

4 by 4 punnet square for traits

Dihybrid

Creating a cross about 2 trait for 2 biotic structures

16 by 16 punnet square for traits

Cell Cycle
Overview of Cells

Living Organisms

Animal

Plant

Theory

Evolved from cells existing before

All biotic are made of of cells, one or many

Why?

Remainder of the cycle: Interphase

Replicating DNA, AKA S Stage

Pre division, AKA G2

Growth of Cell, AKA G1

To develop, repair, and reproduce

Blood

Divided into different groups depending on antigen

Any type O does not

A and B have antigen

Identical Diploids

Results in Mitosis

Mendel, Gregor
Monk (scientist) who studied peas in the 1800's created the genetic base
His knowledge gained

Investigation of how genes are passed

Segregation Rule

Allele different, separatepic

Inheritance

Independent Assortment

Irregular

Combine

Adapt

Meiosis
Procedure

Mitosis takes place second time

First one

Detach homologous pairs

Second Part

Detach Sister Chromatids

Final Cytokinesis

Telophase (II)

Anaphase (II)

Metaphase (II)

Prophase (II)

Cytokinesis

Cell Divides into 2 daughter cells

Telophase

Fibres separate chromosomes

Anaphase

Spindle fibres attach

Metaphase

Chromosomes line up in the middle

Prophase

Chromosomes are present and less dense

Creates 4 cells which are Haploid

Gametes development (2 haploids = diploids)

Sper and Egg makes a Zygote

2 Haploid

X,X is the female egg

Increase in ecosystem survival rate due to Genes / Phenotype Variations

Example: Not everyone dies from the same sickness.

Patterns of inheritation
Genetic Variation

What is behind this?

Recombination in genes

Homologous chromosomes interact with one another.

Genetic content interchange

May result in cancer

Diseases that replicate cells aberrantly and transmit

What does cancer mean?

The outcome of DNA copying errors made during cell division

Non-disjuncture

Known as aneuploidy, not normal amount of chromosomes in the cell

Mistakes in Chromosomes

Segregation Rule ( for mono)

Allele and Genotypes

Lowercase is recessive and dominate is uppercase

Heterozygous

Two independent alleles for one gene (one dominant and one recessive allele, respectively)

Homozygous

Two of the same alleles with one gene (either predominant or both recessive)

Diseases in Genes

Linked to gender

Most often in men

Autosome Chromosome (non ses chromosome)

Reccesive

Dominant

Co dominant

Mixed

Not complete dominant

blended

Internal Organs

Added my own info>

Biodiversity

Cell Types
Multicellular

Eukaryotic

Contain cell membrane

Fungi, Plantea, protisits, anamillia

Many cells

Uncellilur

uncellular

One cell

Overall 6 kingdoms
Eubacteria

Aquatic/Inside Bodies

In extreme conditions

Prokaryotic

Colonisation in harsh conditions.

Have lipids

very small

Prokaryotes

No nuclei

Plantae

Photosynthesis (make own food

Have cell wall

Not Mobile

Protista

Give ood, shelter, and oxygen for numerous underwater ecosystems.

Multi cellular

Animalia

Cell walls are not there

Reproduce

Eukaryotes

Heterotrophic

Always moving around

Require Oxygen

Fungi

Characteristics

They replicate by spores

No embryonic stage.

Non-vascular organisms

Fungi are eukaryotic cells, which means that they have a real nucleus embedded in membranes.

Linnean Classification System
Who is behind it?

Carl Linnaeeus (scientist from Swedan, 1700's

Creating Binomial Nomenclature

He is the one who organized the linnean system

Kingdoms
Reason

There are way to many organisms and species and this is very effective

3 Classifying Subcategories

Archea

Any other bacteria that isn't in the realm of Archaea are considered.

Bacteria

The oldest recognised world of ancient bacterial forms.

Eukarya

Both species that are eukaryotic that contain organelles and nuclei that are membrane-bound.

What is it?

Scientific method  of naming species into categories

Hence, different groups are created for the million species

Domain
"Life on Earth diversity and variability"
Makes this

Deforestation

Climate: Global Warming

Habitat change

Pollution

These impact the environment

Migration of Species

Extinction of Species

Economy can be effected

Class Mindmap

Evolution

Charles Darwin and the theory for Evolution
Charles Darwin- Born in 1809 in England, Naturalist, geologist and biologist

Variation: Tiny variations in the population And is inherited

Competition for selective preasure

Higher fitness species survive longer

Change of species over time

Overtime transition of plants and organisms
Comparative Anatomics

Build of different organisms

Homologous

The structure is same but functions are different

Vestigial

From Evolved Various ecosystems

Similarities

Identical Feature Different Composition

Speciation

Allopatric speciation

Sympatric Speciation

Various Routes

Adaptation takes place to counteract the adaptation of other species. (prey verses predator)

Barriers in Reproducing

There are 2 kind

Prezygotic

Temporal Isolation

Behavioural Isolation

Genetic Isolation

Mechanical Isolation

Habitat Isolation

Post Zygotic

Hybrid Sterility

Hybrid Inviability AKA ^

Hybrid Breakdown

Subtopic

Post-Reproduction

Mechanisms involved in evolution

Macroevolution

Over long periods of time, developmental shifts The root of new groups is and includes

Genetic Drift

Random alterations in genetic variation Because of an opening

Bottle neck effect

Founder Effect

Inbreeeding

Near individuals who are related Bred for each other

gene

Allelele migration from one population Through still.

Planned Mating

Individuals are breeding with Others of particular phenotypes

Microevolution

Alterations of the gene pool a single population

Reproductive Barriers
Choices of Traits

Outlets for variation

Mating which isn't random

Bred for particular phenotypes with others

Recombination

Build new frequencies with alleles,  the introduction of new alleles by means of

Mutations

Introducing new alleles spontaneously From one gene to another

Sources of organism variance mechanism Adaptation Shifting and evolving

Natural Selection

Favoured by environment

Certain allels fitness increases

Stable selection

Selected Artificially

Non random, selected by species like humans

Interbred those with characteristics required (Phenotype)