Monday, January 21, 2013

Big Idea 3

(Big idea 3, #1) This photo of a karyotype represents diploid. A diploid cell is a cell that contains two sets of chromosomes, one from each parent. This karyotype shows the two sets of chromosomes matched up with each other from each parent.

(Big idea 3, #2) These bananas represent ethylene. Ethylene is the only gaseous plant hormone. It aids in response to mechanical stress, leaf abscission, cell death, and fruit ripening. The ethylene in these bananas helped them become ripe like they are now.

(Big idea 3, #3) The meerkats represent eukaryotes. Eukaryotes are animals that have cells with a membrane bound nucleus and membrane bound organelles. Meerkats are organisms that have eukaryotic cells.



(Big idea 3, #7/8) These three photos represent evidence of different alleles for the same trait. This is when the same trait of an organism is proved to have different alleles by having different phenotypes. These three eye colors, green, blue, and hazel, show that the three eyes have different alleles by having different eye colors.

(Big idea 3, #9) The bird seen in this picture represents a flock. A flock, herd, or school, is a group of a certain species of animal all living together. This bird in the picture is a part of a larger flock of birds. This was as close as I could get to the tree of birds without scaring them away.

(Big idea 3, #15) My scraped in this picture represent mitosis. Mitosis is the process of replication and division of normal eukaryotic cells. The areas on my knee and elbow are undergoing mitosis to regrow the skin in those areas.

(Big idea 3, #17) The dogs in this picture represent phenotypes. Phenotypes are the physical traits of an organism and are determined by their genetic makeup, or genotype. These two dogs show different phenotypes, white fur and black fur.

(Big idea 3, # 21) The cattails in the picture exhibit tropism. Tropism is when an organism grows a certain way in response to a stimulus. These cattails are growing leaning over the water. They are growing in response to the stimulus of water.

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