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VashaNatasha [74]
3 years ago
9

What is the definition of tetrad

Biology
2 answers:
irina1246 [14]3 years ago
6 0
A group or a set of four
Paraphin [41]3 years ago
3 0
A set or a group of four.
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How much of a 100 gram sample of gold-198 is left after 810 days if it’s half life is 2.7
Juliette [100K]

Answer:

mass₁=100.0g

time₁=2.70 days

mass₂=x

time₂=8.10 days

8.10/2.70 = 3

100/2 = 50/2 = 25/2 = 12.5 g

x=12.5 g

7 0
3 years ago
When the product of a metabolic pathway accumulates, it may be able to slow down or turn off the pathway by inhibiting the activ
Nina [5.8K]

Answer: feed-back

When the product of a metabolic pathway accumulates, it may be able to slow down or turn off the pathway by inhibiting the activity of an enzyme that catalyzes an early step in the pathway. This is referred to as feed-back inhibition.

Explanation:

Feed-back inhibition is said to occur when the final product of a biochemical pathway signal the inactivation of the starting materials of the pathway.

For example: when pyruvate signal the inactivation of phosphofructokinase, the glycolytic pathway gets turned off.

5 0
3 years ago
Is there a scientific reason why adults don't really understand their children?
Alenkinab [10]
Throughout their teenage years, children's minds are literally being rewired. Teenagers are unable to comprehend facial expressions or other's emotions which can make it for others to understand them or for them to even understand themselves.
8 0
3 years ago
A population of wild-flowers was scored for flower color. There were 302 blue (BB) plants, 1857 violet (BR) plants and 811 red (
Paul [167]

Answer:

frequency of the blue (B) allele = 0.4142

frequency of the red (R) allele = 0.5858

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

Explanation:

Frequency of blue allele is

Frequency of blue allele is equal to sum of frequency of BB and half of frequency of BR

\frac{302}{2970} + \frac{1}{2} \frac{1857}{2970} \\= 0.1016 + 0.3126\\= 0.4142

Frequency of other allele

1- 0.4142\\= 0.5858

Chi Square test

See the attached file

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

7 0
3 years ago
____ feedback is when the body reacts in the same direction as a stimulus.
Rom4ik [11]

Answer:

negative

Explanation:

6 0
3 years ago
Read 2 more answers
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