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Galina-37 [17]
3 years ago
10

In DNA fingerprinting explain how DNA moves through the gel

Biology
1 answer:
Zielflug [23.3K]3 years ago
3 0

Answer:

B. The smaller DNA pieces travel farthest towards the positive end of the box

Explanation:

Gel-electrophoresis technique is a technique which is used to separate the fragments of DNA based on their size. The technique is employed in the DNA fingerprint analysis.

The DNA samples are loaded on one side of the gel and when an electric current is applied, the DNA moves from the wells towards the electrodes.

The DNA is a negatively charged molecule which travels through pores in the gel and reaches towards the electrode with positive charge. The smaller the size of the DNA fragment, the faster it moves.

Thus, Option-B is correct.

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Plz <br> I need answers to this help due tmrw
MrRissso [65]

vocabulary 1

1. DNA sequences

2. Homologous structures.

3. Paleontologist

4. analogous structures

5. fossils

6. vestigial

7. Comparative embryology

8. Comparative anatomy

vocabulary 2

1. DNA sequences

2. Analogous structures

3. Comparative anatomy

4. Fossils

5. vestigial

6. homologous structures

7. Comparative embryology

8. structure

9. Scientists

Explanation:

1. Human and apes are evolutionarily closely related based on the analysis of their DNA sequences.

2. Wings of bats and birds serve the same function and are analogous structure.

3. Comparative anatomy is the study of the similarities and differences in structures in similar species.

4. Fossils demonstrate that during the evolution of the whale, the whale moved from land to the sea.

5. The human tailbone and appendix are vestigial organs.

6. The homologous structures are structures that are similar in related organisms because they were inherited from the common ancestor.

7. Comparative embryology is the study of similarities and differences in the embryo of different species.

8. The forelimb of all the mammals has basic bone structure.

9. Scientists who find and study fossils are called paleontologists.

8 0
3 years ago
DNA replication occurs during which phase of the eukar<br><br> yotic cell cycle?
Ann [662]

its either The division cycle of most eukaryotic cells is divided into four discrete phases: M, G1, S, and G2. M phase (mitosis) is usually followed by cytokinesis. S phase is the period during which DNA replication occurs or In eukaryotes, the cell cycle consists of four discrete phases: G1, S, G2, and M. The S or synthesis phase is when DNA replication occurs, and the M or mitosis phase is when the cell actually divides. The other two phases — G1 and G2, the so-called gap phases — are less dramatic but equally important. hope this helped!!

3 0
2 years ago
Question 3
andrew-mc [135]
I’m sure it’s Biome !
8 0
2 years ago
Scientific explanations are usually based on
kirill [66]

Answer:

A fixed set of steps and procedures

6 0
2 years ago
I need help with this. PLEASE HELP IF YOU CAN!!!
dalvyx [7]
I can’t sorry........
6 0
3 years ago
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