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Mnenie [13.5K]
2 years ago
8

CAN SOMEBODY PLEASE JUST ANSWER THIS ONE BIOLOGY QUESTION!!!! I MEAN NOBODY ANSWERED MY OTHER ONES HARDLY!!!!! I GUESS NOBODY KN

OWS BIOLOGY GOOD!!!! I SURE DONT SO IM NOT REALLY MADD!!!!!!!

Biology
1 answer:
ratelena [41]2 years ago
4 0

Answer:

Increase the points, answers will pour in

Explanation:

nobody wants to answer tough questions for only 5 points.

(please give brainliest)

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The ability to taste the chemical PTC is due to a single gene in humans.
Ganezh [65]

0:3:1

Explanation:

Tasters have the dominant allele for the itter taste of PTC, they can be homozygous TT and heterozygous Tt.

Non-tasters are supposed as autosomal recessive characters

they are homozygous recessive tt when expressed

Given in the equation two heterozygotes parents would produce offspring with the trait in the following ratio.

Tt (parent 1)

Tt (parent 2)

 If a punnet square is made

    T      t

T  TT    Tt

t    Tt     tt

The phenotypic character is in the ratio of 0:3:1

There will be 25% chances of recessive trait of non-tasters in the progeny of heterozygous parents.

5 0
3 years ago
What is a greenhouse gases and what is Green House effect
TiliK225 [7]
Greenhouse gases(also known as GHGs) are gases in the earth's atmosphere that trap heat, such as carbon dioxide, methane, nitrous oxide, and certain synthetic chemicals.

The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and some is absorbed and re-radiated by greenhouse gases.
8 0
2 years ago
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How does an enzyme influence a chemical reaction?
seropon [69]

Answer:

It speeds up the reaction rate

Explanation:

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

8 0
2 years ago
Help please im legit slow so like i would appreciate it​
Katyanochek1 [597]

I'm no good with science sorry

5 0
3 years ago
What condition is required for fermentation to occur? A. When oxygen levels within a cell are too low for aerobic respiration B.
Leokris [45]

Answer:

A. When oxygen levels within a cell are too low for aerobic respiration

Explanation:

Fermentation is a chemical or metabolic process that occurs in organism, when a carbohydrate such as glucose is metabolized or converted to an alcohol anaerobically (absence of oxygen).

When an organism lacks oxygen within the cell, aerobic respiration would be halted, hence pyruvate produced from glucose further undergoes fermentation anaerobically.

Organisms like lactic acid bacteria and yeast carry out fermentation. The process of fermentation is widely used in food industries, such as in brewing of wine or manufacture of yogurt.

6 0
3 years ago
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