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trapecia [35]
3 years ago
13

Which of the following would most likely lead to the development of analogous structures in two

Biology
1 answer:
Margaret [11]3 years ago
7 0

Answer: D. Two distantly related species both live in hot, dry deserts.

Explanation: Don't worry it's right. I know that for a fact because I just took the test.

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If cyanide stops the production of atp what transport would cease
boyakko [2]
ATP is produced via 3 main ways. This being Glycolysis, Krebs Cycle and ETC or Electron Transport Chain. However Cynanide binds to something called the cytochrome C oxidase, which is part of the ETC, which means the ETC no longer produces the ATP required for the cell. Therefor your body can't produce the energy u need and you die.
4 0
4 years ago
The shape and mechanical properties of plant, yeast, and bacteria cells is established by a
satela [25.4K]

Answer:

(d) Cell wall

Explanation:

The cell wall is a structure located on the outside of the cell membrane in the cells of plants, bacteria, fungi, and algae. It is a resistant, tough and flexible layer, which has the vital function of supporting the osmotic pressure inside the cell, preventing the cell from lysis when water enters. Besides, it has the function of giving rigidity, support and defining the shape of the cell.

4 0
4 years ago
DNA encodes the cell's genetic instructions for making proteins. The process of making proteins from DNA is divided into two sta
Marta_Voda [28]

Answer:

Transcription is the synthesis of RNA from the DNA. It is further divided into three steps:

Initiation: In this step at first, there is binding of RNA polymerase to the group of transcription factors, it binds at the promoter. It is followed by unwinding of DNA double helix, and then the synthesis of RNA starts.

Elongation: The RNA polymerase extends across the DNA template, it adds the base pairs in 5' to 3' direction. In the same step proofreading of RNA is done to eliminate the errors in synthesis.

Termination: In this step RNA polymerase detaches, at certain stop signals, adding of further base pairs is also terminated by RNA polymerase. The newly synthesized transcript of RNA is released.

8 0
3 years ago
You perform the following dihybrid cross: A blaBx Ab/aB. The A and B genes control different traits. What phenotypic ratio would
Luda [366]

Answer:

Option-D

Explanation:

In the given question the genotype of parental allele is- AbaB X AbaB. The alleles formed will be- AB, Ab,aB, ab in which the crossover allele will be AB and ab.

1. Unlinked genes

Now of these alleles are unlinked then the alleles will assort independently of each other therefore performing the punnett square we will get dihybrid ratio as 9:3:3:1 in which  

1. A_B_ are 9

2. aaB_ are 3

3. A_bb are-3

4. aabb- 1

Since the crossover allele are AB and ab therefore A_B_ are 9 and aabb- 1 represent recombinant genotype.

2. Linked genes

When the genes will be linked then chances of crossing over will be reduced as a result of which only two type of allele will be formed which are-  Ab and aB and the recombinant frequency will become less.

Crossing these allele will  form Aabb , AaBb , AaBb  and aaBB  genotypes. The recombinant ratio will decrease as A_B_ is 2 and aabb is not present.

Thus, option-4 which states that the unlinked ration is  9:3:3:1  and linked ratio is  <9: >3: >3: <1 is correct.

7 0
4 years ago
Who madeThe double-helix structure of DNA:
Marina86 [1]

Answer: Francis Crick and James Watson (or Rosalind Franklin).

Explanation: After Crick and Watson took over the study that Franklin did, they managed to figure out the structure and the parts of the DNA. But specifically, Crick and Watson were the people who called the structure a “double helix”.

3 0
3 years ago
Read 2 more answers
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