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What happened to the proportions of the two phenotypes as the F1 generation grew from 10 to 100 offspring?
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∙ 10y ago
2015 CSI mamen, especialmente MANDY
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∙ 10y ago
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What did Medel study to learn about genetics?
Mendel studied dominant and recessive traits in pea plants and flowers that had traits that had either or phenotypes. For example, a pea plant could have round or wrinkled offspring. He would then breed the round and wrinkled together and see what happened.
Why did matthias schleiden invent his microscope?
when his famous answer on the cell theory happened he built a microscope not neccacarely for that but he used it and found out spontanious generation is not true
What did Francesco Redi discover?
Francesco Redi did an experiment in 1668 that disproved a belief that maggots spontaneously generated on rotting meat. His experiment was to place meat into sets of jars: one set he left open to the air, one set he covered with very fine gauze, one set was completely sealed. Maggots appeared on the meat in the open jars; flies laid eggs on the gauze but no maggots appeared because the scent of rotting meat provides no nourishment; nothing appeared on the meat in the completely sealed jars. Redi believed in spontaneous generation of many things, just not fly maggots. He is credited with beginning the experiments using controls method used now.
Could cancer cells be passed on to offspring when they affect the gametes?
Gametes are single cells, either egg or sperm, with unmatched DNA that join to form a single cell, a zygote with complete DNA, which grows into a new individual. A cancer cell could not 'affect' a gamete. Cancer is an uncontrolled growth of cells that do not function properly. This is usually the result of damaged DNA. If a gamete had defective DNA, it would create a zygote with defective DNA that would grow improperly, like a cancer. Such zygotes would not develop properly, and would either not attach to the womb, or would spontaneously abort early in pregnancy. Offspring usually contain an infinitesimally small number of cells from the mother. Likewise, the mother contains some infinitesimally small number of her offspring's cells. The frequency of such cells compared to the rest of the cells of the body are so rare that they do not normally affect the health of either the mother or the offspring. It might be theoretically possible for a cancerous cell from the mother to get into the offspring long after the gamete. As far as I know, this has never been proven to have happened. Some viruses can cross the from the uterus (part of the mother) to the placenta (part of the baby). This is why some viruses (for example rubella) can cause birth defects. Most bacteria cannot cross, and even some rather sinister viruses, like HIV, don't always cross. Some women who are HIV positive have babies who are HIV negative. The separation of the mother's circulatory system from the baby's circulatory system is one of the wonderful advantages of placental animals that allows diseased mothers to give birth to disease-free offspring. This gives mammals a survival advantage over other types of animals. For example, diseases pass more easily from a bird to its eggs.
Do roots grow from their tips?
Hairline happened
What did Medel study to learn about genetics?
Mendel studied dominant and recessive traits in pea plants and flowers that had traits that had either or phenotypes. For example, a pea plant could have round or wrinkled offspring. He would then breed the round and wrinkled together and see what happened.
When did Generation of Chaos happen?
Generation of Chaos happened in 2005.
When did Bomberman Generation happen?
Bomberman Generation happened in 2002.
When did Agassi Tennis Generation happen?
Agassi Tennis Generation happened in 2002.
When did Generation of Chaos Exceed happen?
Generation of Chaos Exceed happened in 2003.
When did Generation M - comics - happen?
Generation M - comics - happened in 2006-01.
What happened to the speed of computers as they moved from first generation to fifth generation?
The speed of computers increased from one generation to the next generation, and to the next generation, and so on.
What happened to the size of the family's estate from generation to generation in China?
It increased by the year over and over agian
When is the first generation of computers happened?
Roughly from 1946 to 1958.
What happened to Cortes and his generation of conquistadores afterwards?
he turned into a monkey
When did Super Robot Wars Original Generation Gaiden happen?
Super Robot Wars Original Generation Gaiden happened in 2007.
What happened to ann white of the new christy minstrels?
She was part of The Love Generation.
