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3 years ago

Which of the following can only cause diseases in plants. *

2 answers:

8 0

Answer: infectious plant diseases are caused by pathogens, living microorganisms that infect a plant and deprive it of nutrients. Bacteria, fungi, nematodes, mycoplasmas, viruses and viroids are the living agents that cause plant diseases.

Explanation:

Irresistible plant ailments are brought about by pathogens, living microorganisms that taint a plant and deny it of supplements. Microorganisms, parasites, nematodes, mycoplasmas, infections and viroids are the living specialists that cause plant maladies.

IrinaVladis [17]3 years ago

5 0

Pathogens I think. It may be incorrect but if I remember correctly it is.

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Cystic fibrosis is an autosomal recessive disorder. In one population, the frequency of affected individuals (A 2 A 2) is 0.0004

Simora [160]

Hardy Weinberg Equilibrium

Explanation:

Hardy Weinberg Equilibrium formula for allelic frequency is: $p+q=1$

Hardy Weinberg Equilibrium formula for genotypic frequency is: $p^2+q^2+2pq=1$

Here, $p$ =frequency of dominant allele

$q$ =frequency of recessive allele

$p^2$ =frequency of dominant genotype

$q^2$ =frequency of recessive genotype

$2pq$ =frequency of heterozygous genotype

frequency of affected individuals=0.0004(given)

here,affected individuals means the one's having Cystic Fibrosis and since it is recessive disease so we can write frequency of recessive genotype as: $q^2$ =0.0004

If $q^2$ =0.0004 $q$ will be 0.02;frequency of recessive allele will be 0.02

Using the formula $p+q=1$

$p+0.02=1\\p=1-0.02=0.98$

hence,frequency of dominant allele will be 0.98

Frequency of dominant genotype will be $p^2=(0.98)^2=0.9604$
Frequency of heterozygous genotype will be $2pq=2*0.98*0.02=0.0392$

7 0

3 years ago

Calculate the net force of the following situation.

Llana [10]

Answer:

Step-by-step equation:

-10 + 30 = 20

It's like walking ten meters to the left, then walking thirty meters to the right. The result is walking 20 meters to the right. It's the same with force.

8 0

3 years ago

Can some help me find the correct answer ?

Soloha48 [4]

I’m not sure but it might be the third one

7 0

3 years ago

Put a check mark on the line before each phrase that applies to cloning.

anzhelika [568]

I think you should put a check mark by 2, 3,

5, and maybe 6.

Hope this helps.

3 0

3 years ago

1. What is the Photosynthesis EQUATION? What is being consumed and what is produced?

Alla [95]

1. 6CO2 + H2O -----> C6H12O6 + 02

2. The idea of photosynthesis or light dependent reactions is to convert solar/light energy into chemical energy by the form of ATP and NADPH. CO2 and Water are consumed and react to release Glucose and 02. Approximately 36-38 ATP produced.

3. Water is the source of hydrogen atoms in the glucose (sugar) created by the photosynthesis reaction.

4 .
Step 1) The light absorbed by chlorophyll causes a transfer of electrons and H+ from H20 molecules already present. This causes the H20 to split into molecular 0xygen (02) and a H+ ion.

Step 2.) The O2 is released (we breathe it) and the H+ bonds to NADP+ creating NADPH

Step 3) ATP is formed through photophosphorylation. (ADP gets a phosphate group added to it creating ATP)

Step 4.) The NADPH and the ATP created here go on to fuel the reactions in the second part of photosynthesis - The Calvin Cycle

5. The Calvin cycle is a metabolic process that uses the carbon from carbon dioxide, along with energy in the form of ATP, to produce sugar.
A G3P molecule contains three fixed carbon atoms, so it takes two G3Ps to build a six-carbon glucose molecule. It would take six turns of the cycle.

6. To help synthesize carbohydrates for energy

7. In fixation, the first stage of the Calvin cycle, light-independent reactions are initiated; CO2 is fixed from an inorganic to an organic molecule. In the second stage, ATP and NADPH are used to reduce 3-PGA into G3P; then ATP and NADPH are converted to ADP and NADP +, respectively

6 0

3 years ago