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Taya2010 [7]
3 years ago
11

Photosynthesis and cellular respiration are cells ____that occur in cells.

Biology
1 answer:
Leviafan [203]3 years ago
7 0

Answer:

A) chemical reactions.

Explanation:

"Photosynthesis is the process through which plants convert light energy into chemical energy. Here is the chemical reaction involved: As we can see, water and carbon dioxide combine to form glucose and oxygen. Since new chemical species are formed, photosynthesis is clearly a chemical change. "

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Which experiment is more likely to be reliable, and why ?
tigry1 [53]
Since there’s nothing here other than what you’ve asked i’ll guess, an experiment that is more likely to be reliable will not use the first values it gets, will be done multiple times and the values will be close in number
3 0
3 years ago
Which organelle's function is CORRECTLY described?
Romashka [77]
I think the organelle whose function is correctly described is mitochondria.
6 0
3 years ago
Of these, which is NOT a sexually transmitted disease?
kykrilka [37]

Answer:

D) Tuberculosis

Explanation:

A) Herpes is a sexually transmitted disease

B) Syphilis is a sexually transmitted disease

C) Chlamydia is a sexually transmitted disease

D) Tuberculosis cannot be transmitted sexually. Tuberculosis is transmitted through air. Therefore D) is the correct answer.

5 0
3 years ago
A signaling pathway that stimulates cellular growth and division is positively regulated by a GTPase encoded by an autosomally l
Romashka-Z-Leto [24]

Answer:

The correct answer is: a.

Explanation:

  • A Diploid organism possess two copies ( also called alleles) of each  autosomal gene, of which one copy of the gene is obtained from one of its parents and the other copy from its other parent.
  • During the process of replication, one of the alleles of the GTPase encoding gene undergoes a mis-sense mutation.
  • A Mis-sense mutation can be defined as a non-synonymous mutation in which one of the nucleotide in the sequence of the gene gets altered such that it causes a change in the amino acid encoded by the codon (triplet nucleotide message encoding for a single amino acid)  formed by the mutated nucleotide. A single amino acid change in the protein, if occurs in the functional site of the protein, can render a protein non-functional.
  • Hence, the mis-sense mutation in one of the alleles encoding for the GTPase gene causes the resulting protein produced from the mutated allele to have drastically reduced function (1%).
  • A heterozygous cell is one which has one copy of the normal allele and the other copy of the mutated allele of the GTPase encoding gene.
  • As one copy of the normal GTPase allele is present in such an individual, it can produce the normal GTPase protein that can assist in the process of cell growth and division.
  • Hence, the phenotype(expressed character) of  the heterozygous cell will not be affected due to the mutation and it will be able to grow and divide normally.
8 0
3 years ago
New species of organisms may emerge if
sergeinik [125]
Two diverse species naturally breed an offspring, and selective preserves raver new traits in a given environment, (they evolve).
I hope this helps.=^⊃
7 0
3 years ago
Read 2 more answers
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