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Lady_Fox [76]
2 years ago
12

what cell structure is mainly responsible for releasing energy from food molecules in some single celled organisms?

Biology
1 answer:
Rasek [7]2 years ago
7 0
The energy in food substances is released in chemical reactions that take place within the mitochondria which are present in some single celled organisms. 
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An animal has a diploid chromosome number of 60. Suppose that the first meiotic division of a germ cell is normal, but a single
ella [17]

Answer:

Two gametes end up with 30 chromosomes, one gamete will have 31 and one will have 29.

Explanation:

During meiosis, a single diploid cell divides into four haploid cells with half the chromosome number than the parent cell.

During meiosis I, homologous chromosomes separate and the chromosome number in the two daughter cells goes down by half. During meiosis II, the "sister" chromatids separate, and the chromosome number in the respective daughter cells remains the same.

Non-disjunction of a single dyad in meiosis II causes that one of the daughter cells will have an extra chromosome, and another will be lacking one. The two other gametes will be normal.

I drew a simple example of what would happen during meiosis of a 2n=4 cell if there was non-disjunction in a single dyad during meiosis II.

5 0
3 years ago
Carbon dioxide is fixed into glucose during carbon ?
disa [49]

Answer:

Carbon fixation

Explanation:

In this reaction, carbon dioxide reacts with hydrogen ions formed during the light stage to form glucose.This is a complex process involving several enzyme-catalyzed reactions. The process requires energy which is provided by the ATP formed during the light reactions.

4 0
3 years ago
Read 2 more answers
Which is an example of codominance? (1 point)
Dafna11 [192]

Answer:

roan coat color in horses

Explanation:

Codominance is one of the Non-mendelian inheritance patterns in genetics i.e. does not follow Mendel's principles of inheritance. Codominance is a phenomenon whereby an allele is neither dominant nor recessive to another in a gene i.e. one allele is not phenotypically expressed over the other. Hence, both alleles are simultaneously expressed in their heterozygous state.

An example of codominance is the roan coat color in horses where the colored (B) and white (W) alleles are both dominant in the coat color gene, hence, the horse expresses both black and white coat phenotypes known as ROAN (BW). The black and white alleles are said to be CODOMINANT.

8 0
3 years ago
Please help me with these
olga_2 [115]

those are nucleotides

since all three of them contain deoxyribose (because there's only one hydroxil group) they are DNA nucleotides

the first nucleotide has cytosine as it's nitrogenous base

the second nucleotide has adenine as it's nitrogenous base

the third nucleotide has thymine as it's nitrogenous base

6 0
3 years ago
What is the main energy source?
BartSMP [9]
Like oil and gas an sometimes the sun
4 0
2 years ago
Read 2 more answers
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