Thursday, March 10, 2016

Blog post 5: Flower Dissection

A Brassica plant is fertilized when pollen from another plant is moved to another plant by the wind or a pollinating insect. Once on the flower. the pollen goes to carpel and then to the ovules at the bottom of the flower.

These are the anthers, they are the male part of the flower and they hold the pollen grains, which contain sperm cells.





The male reproductive part of a flower called a stamen has a stalk known as a filament that comes up from the base of the flower and on top of the filament is the anther which releases sperm cells in the form of pollen.



Shown below is the female reproductive part of a flower known as the carpel. The carpel contains a style and on top of the style is a sticky portion that catches pollen known as the stigma.


Inside the bottom of the carpel is the ovary that contains ovules, which are unfertilized eggs which when fertilized produce seeds inside a fruit.







Friday, February 26, 2016

blog post 4

We are experimenting with some small brussels sprouts. This plant has thick leafs and is on the shorter side. The offspring will appear exactly the same but some small differences like how many leafs there are. The off spring would get its traits from its parents seeds. The seeds begin meiosis when they are planted in the ground. They divide and grow and brassica pass their genetics through their seeds. The offsprings would not look the same because the have a combination of both parents genetics ant the environment can can be different too. The offspring have their own genetics. If we were to grow the plants next to each other for many generations they'd eventually mix. I feel they look so differently because they may have been grown in different spots or environments so they'd have different traits to the others. 

blog post 5

Fertilization in a Brassica occurs when pollen (held on the anthers) from another plant is transported to another plant by the wind or insect. Once the pollen gets to another flower, it makes its way down to the carpel to the ovules located in the base of the flower. 


Here is a picture of the anthers of the flower. They are the male part and holds the pollen 

Here is the male reproductive part of a flower, known as the stamen. It has a stalk called the filament coming up from the base of the flower and on top is the anther. This portion of the stamen produces and releases pollen grains that contain the sperm cells.


Here is the male reproductive part of the flower, known as the carpel. The carpool has a style and on top of the style is the stigma that has a sticky tip that collects the pollen. 

Inside the base of the of the ovary is the ovules. Ovules are immature, unfertilized eggs. 

Blog Post 5 flower dissection

 Inside the base of the of the ovary is the ovules. Ovules are immature, unfertilized eggs

flower dessection

 Here is the male reproductive part of a flower, known as the stamen. It has a stalk called the filament coming up from the base of the flower and on top is the anther. This portion of the stamen produces and releases pollen grains that contain the sperm cells.


Flower dissection

                                                               

Fertilization in a Brassica occurs when pollen (held on the anthers) from another plant is transported to another plant by the wind or insect. Once the pollen gets to another flower, it makes its way down to the carpel to the ovules located in the base of the flower.                                                    Here is a picture of the anthers of the flower. They are the male part and holds the pollen
Leaf