There are two tomato plantlets. One of them is kept in an oxygen chamber with a light source and another is kept in sunlight. Both of them are watered regularly. What will be the observation after two weeks?

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Asked 6/19/2012 8:24:43 AM

Updated 4/23/2014 11:16:42 AM

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Flagged by Janet17 [4/23/2014 11:14:22 AM]

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User: There are two tomato plantlets. One of them is kept in an oxygen chamber with a light source and another is kept in sunlight. Both of them are watered regularly. What will be the observation after two weeks?

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Asked 6/19/2012 8:24:43 AM

Updated 4/23/2014 11:16:42 AM

1 Answer/Comment

Flagged by Janet17 [4/23/2014 11:14:22 AM]

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Janet17

There are two tomato plantlets. One of them is kept in an oxygen chamber with a light source and another is kept in sunlight. Both of them are watered regularly. The observation after two weeks will be: the plant in oxygen will be dead because plants must have carbon dioxide in order to photosynthesise; the plant in sunlight will be growing normally.

Added 4/23/2014 11:16:42 AM

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A normal appearing couple is found to be heterozygous recessive for albinism. Both have the genotype Aa. The gene responsible for albinism is recessive to the normal pigment-producing gene. What are the chances of their children being albino?

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Updated 9/26/2014 4:06:38 PM

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cha97mw

If the couple both have the Heterozygous Aa genotype, their gametes would have a 1 in 4 or 25 % chance of producing a child with aa genotype.

Added 6/19/2012 8:45:22 AM

Janet17

A normal appearing couple is found to be heterozygous recessive for albinism. Both have the genotype Aa. The gene responsible for albinism is recessive to the normal pigment-producing gene. The chances of their children being albino are 1 in 4, or 25%. The probability works out at 50% Aa (normal, carrier), 25% AA (normal) and 25% aa (albino).

Added 9/26/2014 4:06:38 PM

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If pink snapdragons of the F1 hybrids (RW) are crossed with red snapdragons of the parent plant (RR), what will be the ratio of flowers produced in 40 offspring? User: Around 40% of cats with white fur and blue eyes are deaf. The gene responsible is pleiotropic. What does this mean?

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Updated 9/26/2014 4:02:51 PM

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cha97mw

In 40 plants, the probably ratio is 50% red and 50% pink flowers, or 20 of each.

Added 6/19/2012 8:57:31 AM

Janet17

If pink snapdragons of the F1 hybrids (RW) are crossed with red snapdragons of the parent plant (RR), the ratio of flowers produced in 40 offspring will be 50:50, i.e. 20 of each.

Added 9/26/2014 4:02:51 PM

This answer has been confirmed as correct and helpful.

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