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Brilliant_brown [7]
3 years ago
12

hich of the following is not a source of carbon for the carbon cycle? a. Oil b. Shells of marine organisms c. Inorganic fertiliz

er d. The atmosphere
Biology
1 answer:
zubka84 [21]3 years ago
7 0

Answer:

C. Inorganic Fertilizers

Explanation:

No inorganic fertilizers on earth contain cycle participating carbon. The only carbon containing fertilizer is organic Urea (NH2CONH2). This is because plants are never deficient in organic carbon availability. The inorganic fertilizers only deal with their mineral need and that;s why they don't participate in carbon cycle.

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What type of mutation is shown in the sequence below
almond37 [142]

Answer:

Single nucleotide deletion

Explanation:

Original DNA sequence:

A T A C G G T A

T A T G C C A T

Mutated DNA sequence:

A T C G G T A G

T A G C C A T C

​In the mutated sequence, there is a nucleotide missing. It goes from ATACGGTA to ATCGGTAG. The A nucleotide is gone. This represents a single base pair deletion.

Even though it is only one base, this changes the way the entire sequence is interpreted. The DNA transcribed into an mRNA and then translated into a protein by reading triplet codons which correspond to specific amino acids.

So while the initial sequence would be read as:

ATA, CGG, TA...

The new sequence would be read as:

ATC, GGT, AG...

So the sequence of the protein is completely altered.

7 0
3 years ago
A rare genetic disease which is due to a recessive allele (a) and that is lethal when homozygous, occurs within a specific popul
valkas [14]

Answer:

40 individuals

Explanation:

The homozygous recessive percentage is equal to q2.

Recessive genotype frequency, q 2 is 1/1000000  = 0.000001  

therefore, q = \sqrt{q2}  = \sqrt{0.000001 }  = 0.001 =  allele "a" frequency  

and p + q = 1, thus, p = 1 – q = 1 – 0.001 = 0.999  

thus, the frequency of allele a = q = 0.001  and the frequency of allele A = p = 0.999

Carriers are heterozygous and are equal to 2pq.  

So, 2pq = 2  x 0.999 x 0.001 x  20,000 = 39.96 (round of to 40)

Hence, 40 individuals will be expected to carry the recessive allele.

5 0
3 years ago
9. All of the following statements about the scientific name for an organism are true EXCEPT
amid [387]

Answer:

D. the kingdom name is listed first

Explanation:

The genus name is listed first, not the kingdom name. The kingdom name isn't even is the scientific name.

5 0
3 years ago
Help me please! What type of symbiotic relationship is this?
Len [333]

Answer:

commensalism mutualism,parasitism

4 0
3 years ago
Name two structural characteristics that triglycerides and phospholipids have in common.
lozanna [386]

Answer:

They both have fatty acids.

Explanation:

which vary in number whereby triglycerides has three fatty acids while phospholipids have two fatty acids.

7 0
3 years ago
Read 2 more answers
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