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Step2247 [10]
3 years ago
13

What are the four different nitrogen containing bases?

Biology
1 answer:
Andrei [34K]3 years ago
4 0

Answer: The four nitrogen bases found in DNA are adenine, cytosine, guanine, and thymine

Explanation:

Good luck

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Which organelle is outside the cell membrane?
statuscvo [17]

Answer:

c

Explanation:

I think I remember fro.5th grade

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3 years ago
What happen when the phosphate from ATP attaches to the pump?
Feliz [49]
If you mean the xylem pump, then after the ATP attaches to it the water can travel trough the xylem tube and get to the stomata and through osmosis travels through the semi-permeable membrane allowing it to open and allow to get In for photosynthesis
6 0
4 years ago
Triose phosphate isomerase interconverts dihydroxyacetone phosphate and glyceraldehyde-3-phosphate. Mutants of yeast or bacteria
Anettt [7]

Answer:

Explained

Explanation:

Due to lack of of Triose phosphate isomerase cell will be unable to interconvert Dihydroxyacetone to glyceraldehyde 3 phosphate.

And the cells will be able to complete the glycolysis only in the presence of glyceraldehyde 3 phosphate which will generate 2 ATP and hence the net ATP gain during whole process in anaerobic condition will be Zero. This will lead to the dath of the mutant yeast.

a) While in case of aerobic condition, only one molecule of pyruvate will also be able to produce more ATP compared to anaerobic condition by further oxidation which is sufficient for yeast to survive.

b)  the cells will be able to complete the glycolysis only in the presence of glyceraldehyde 3 phosphate which will generate 2 ATP and hence the net ATP gain during whole process in anaerobic condition will be Zero. This will lead to the death of the mutant yeast.

7 0
4 years ago
Which phrase describes short-term environmental changes?
Zepler [3.9K]

Answer:

i willl answer this science question in the comments section

Explanation:

3 0
2 years ago
Describe the events that occur during meiosis that are defined by Mendel's laws of segregation and independent assortment. Expla
zysi [14]

Answer:

Mendel's Laws are a set of basic rules on the inheritance of characteristics from parent organisms to their children. They are considered rules rather than laws, since they are not fulfilled in all cases. Mendel's first Law of equitable segregation establishes that during the formation of the gametes each allele of a pair is separated from the other member to determine the genetic constitution of the filial gamete, the two alleles, which code for each characteristic, are segregated during the production of gametes through meiotic cell division. This means that each gamete will contain only one allele for each gene. This allows the maternal and paternal alleles to combine in the offspring, ensuring genetic variation. For each characteristic, an organism inherits two alleles, one for each relative. This means that in somatic cells, one allele comes from the mother and one from the father.

Explanation:

Mendel's laws reflect chromosomal behavior during meiosis: the first law responds to the random migration of homologous chromosomes to opposite poles during anaphase I of meiosis (both alleles and homologous chromosomes segregate equally or 1: 1 in gametes) and the second law, to the random alignment of each pair of homologous chromosomes during metaphase I of meiosis (whereby different genes and different pairs of homologous chromosomes segregate independently).Even though not all genes are inherited in the proportions described by Mendel, they are undoubtedly all inherited in the same way, that is, the alleles or different alternatives of a gene are separated in meiosis and each gamete will carry only 1 of them (2nd Mendel's Law) and in turn all genes on different pairs of chromosomes are transmitted independently. This allows the maternal and paternal alleles to combine in the offspring, ensuring genetic variation.Therefore, of each possible genotype for a two three or more genotypes it is possible to know how many gametes it will form, in what proportions and therefore predict results of crosses.

8 0
3 years ago
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