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Juli2301 [7.4K]
2 years ago
5

Why do the lateral and polar views of chromosomes of the same cell in metaphase look different?

Biology
2 answers:
SSSSS [86.1K]2 years ago
7 0
Because its being viewed by a different angle. nothing looks the same a different angles but something highly symmetric. in this case a cell is definitely not symmetric
Papessa [141]2 years ago
3 0

Answer:

Chromosomes have a 3D conformation and when they line up against a metaphase plane, the lateral view and polar view of chromosomes would differ. As with the case of most cellular organelles and organisms, everything has a 3D structure and hence would look different when viewed from different angles.

Explanation:

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you went on vacation and forgot to water your plants. when you returned the leaves were soft and wilted. Name an organelle that
soldi70 [24.7K]
The large central vacuole would become dehydrated, because without enough water stored in it, there wouldn't be any turgor pressure (water pushing against the cell wall) to support the cell, which causes the plant to wilt.
4 0
2 years ago
A biologist at World University used Procedure IV to conduct an additional study and found the sequence following below. Using y
Nady [450]

Answer:

Valine-Leucine-Proline-Lysine-Histidine

Explanation:

The central dogma of biology is the process by which DNA is used to synthesize RNA and subsequently amino acid sequence (PROTEIN). The processes of transcription and translation is used in gene expression. Transcription is the process whereby the information encoded in a DNA molecule is used to synthesize a mRNA molecule. Transcription is catalyzed by RNA polymerase enzyme, which uses complementary base pairing rule i.e Adenine(A)-Thymine(T), Guanine(G)-Cytosine(C) pairing.

N.B: Thymine is replaced by Uracil in the mRNA

For the above DNA sequence: CAC GAC GGA TTC GTA, the mRNA sequence will be: GUG CUG CCU AAG CAU

Translation is the second process of gene expression which involves the synthesis of an amino acid sequence from an mRNA molecule. The mRNA is read in a group of three nucleotides called CODON. Each codon specifies an amino acid (see attached image for genetic code)

Based on the attached genetic code, an mRNA sequence: GUG CUG CCU AAG CAU will encode an amino acid sequence: Valine(Val) - Leucine (Leu) -Proline (Pro) -Lysine (Lys) - Histidine (His).

GUG specifies Valine amino acid

CUG specifies Leucine amino acid

CCU specifies Proline amino acid

AAG specifies Lysine amino acid

CAU specifies Histidine amino acid

5 0
2 years ago
Red mangrove trees have roots that prevent soil erosion in coastal areas. They also provide hiding places for the young of coral
SIZIF [17.4K]
Commensalism<span>, in </span>ecology<span>, is a class of relationships between two organisms where one organism benefits from the other without affecting it. This is in contrast with </span>mutualism<span>, in which both organisms benefit from each other, </span>amensalism<span>, where one is harmed while the other is unaffected, and </span>parasitism<span>, where one benefits while the other is harmed.</span>
8 0
2 years ago
1. You are studying an integral membrane protein of the plasma membrane. It has a single transmembrane domain and the N-terminal
Drupady [299]

Answer:

A 22 to 25 amino acid sequence present in the central section of the protein, which gives rise to an alpha helix in the membrane is known as the stop-transfer anchor sequence. The sequence plays an essential function in targeting the protein towards the plasma membrane. On the other hand, it also ceases targeting of the protein towards the endoplasmic reticulum, which was started by the signal peptide.  

Thus, the process of translation of the remaining of the protein occurs within the cytosol due to the tethering of the transmembrane domain. In the stop-transfer anchor sequence, the hydrophobic amino acids present are isoleucine and valine. After mutation, these amino acids get converted into arginine and lysine, thus, hydrophilic amino acids replace hydrophobic amino acids in the sequence.  

Due to this, the transmembrane domain cannot be targeted towards an integral part of the plasma membrane by the short transfer anchor sequence, and therefore, now the translocation of the protein will take place towards the endoplasmic reticulum as initiated by the signal peptide at the beginning.  

3 0
2 years ago
What is your hypothesis regarding difference in urine "chloride" concentration between subjects who drank water and subjects who
Sedbober [7]

Answer:

Chloride concentration in urine is more who drank sport drink as compared to a person who drank normal water.

Explanation:

Chloride concentration in urine is high who drank sport drink as compared to a person who drank water because in sport drink there is more concentration of salts are present which is required our body. Due to more salts present in the sport drink, more chloride is present in urine due to the removal from the body while normal water has less amount of salts so urine has less concentration of chloride in urine.

4 0
2 years ago
Read 2 more answers
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