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Likurg_2 [28]
3 years ago
9

Read the following sample task and identify it as declarative or procedural. Explain why there are two low tides and two high ti

des each day.
A. declarative
B. procedural

HELP SAP!
Biology
1 answer:
mr_godi [17]3 years ago
6 0
It's declarative hopes this helps if im wrong then im stupid :)

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Mitosis is a type of cell division. organize the images below to show the steps of mitosis.
barxatty [35]

Answer:    

The correct order is F, E, C, G, H, A, D, and B (look at the image in the attached files)

Explanation:

  • <u>Interphase</u><u>:</u> Stages G1, S, and G2. At this point probably, the chromatin duplication has already occurred, but it is still lax or dispersed. It has not condensed yet. Two pairs of centrioles are outside the nucleus (FIGURE F)  
  • <u>Prophase</u>: Centrioles move forward to the opposite poles of the cell. Chromatin is condensed and individual chromosomes are now visible. The nuclear membrane breaks into many pieces. Spindle apparatus -microtubules- forms. (FIGURE E)
  • <u>Metaphase:</u> The polar and the kinetochore fibers drive each individual chromosome to the equatorial plane. This stage ends when all the chromosomes are completely arranged in the medial area.  (FIGURE C)
  • <u>Anaphase</u>: Sister chromatids separate and move to the opposite poles of the cells, driven by the microtubules. In each pole, there are a pair of centrioles (FIGURE G and H).
  • <u>Telophase</u>: The nuclear membrane rearranges. Each sister chromatid becomes now a new chromosome. There is a pair of centrioles outside each of the nuclei. (FIGURE A)
  • Cytokinesis occurs at the end of the cell division. The rest of the cell is divided into two new daughter cells. Each daughter cell is an identical copy of the other cell, with the exact same genetic material (FIGURE D).
  • Decondensation of the genetic material of each new cell (FIGURE B).

5 0
2 years ago
Select all that apply.
vitfil [10]
Nitrogen is not necessary <span />
7 0
3 years ago
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Briefly describe the relationship between the old testament and the new testament. quizlet
Colt1911 [192]
The New Testament does not replace the old testament, however it fulfills it. Without the New Testament the Old Testament would just be a collection of tragic stories and unfulfilled promises. The Old Testament is the gradual unfolding of Gods plan of salvation
3 0
3 years ago
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Umm.. Hi there! Can someone please help me out with this? (only for those who know the answer)
kakasveta [241]

Answer:

  1. (b)
  2. (c)
  3. (a)
  4. (b)
  5. (d)

  1. (d)

Explanation:

1.

I saw the similarity that there are 7 periods in a periodic table and 7 days in a week.

2.

The periodic table tells us both the symbol and atomic number of the elements.

3.

days as there are 7days in a week.

4.

vertical columns are called groups.

5.

seeing the periodic table we can locate it postion that is group 16 period 2.

CONCLUSION :-

1. all the given points tell the properties of periodic table.

6 0
3 years ago
If mrna codons are aug, ggu and cag, what three codons of trna will attach?
Artemon [7]

Source : Net

* it signals the start of translation  

* it codes for the incorporation of the amino acid methionine (Met) into the growing polypeptide chain  

The genetic code can be expressed as either RNA codons or DNA codons. RNA codons occur in messenger RNA (mRNA) and are the codons that are actually "read" during the synthesis of polypeptides (the process called translation). But each mRNA molecule acquires its sequence of nucleotides by transcription from the corresponding gene. Because DNA sequencing has become so rapid and because most genes are now being discovered at the level of DNA before they are discovered as mRNA or as a protein product, it is extremely useful to have a table of codons expressed as DNA. So here are both.  

Note that for each table, the left-hand column gives the first nucleotide of the codon, the 4 middle columns give the second nucleotide, and the last column gives the third nucleotide.  

The RNA Codons  

Second nucleotide U C A G  

U UUU Phenylalanine (Phe) UCU Serine (Ser) UAU Tyrosine (Tyr) UGU Cysteine (Cys) U  

UUC Phe UCC Ser UAC Tyr UGC Cys C  

UUA Leucine (Leu) UCA Ser UAA STOP UGA STOP A  

UUG Leu UCG Ser UAG STOP UGG Tryptophan (Trp) G  

C CUU Leucine (Leu) CCU Proline (Pro) CAU Histidine (His) CGU Arginine (Arg) U  

CUC Leu CCC Pro CAC His CGC Arg C  

CUA Leu CCA Pro CAA Glutamine (Gln) CGA Arg A  

CUG Leu CCG Pro CAG Gln CGG Arg G  

A AUU Isoleucine (Ile) ACU Threonine (Thr) AAU Asparagine (Asn) AGU Serine (Ser) U  

AUC Ile ACC Thr AAC Asn AGC Ser C  

AUA Ile ACA Thr AAA Lysine (Lys) AGA Arginine (Arg) A  

AUG Methionine (Met) or START ACG Thr AAG Lys AGG Arg G  

G GUU Valine Val GCU Alanine (Ala) GAU Aspartic acid (Asp) GGU Glycine (Gly) U  

GUC (Val) GCC Ala GAC Asp GGC Gly C  

GUA Val GCA Ala GAA Glutamic acid (Glu) GGA Gly A  

GUG Val GCG Ala GAG Glu GGG Gly G  

The DNA Codons  

These are the codons as they are read on the sense (5' to 3') strand of DNA. Except that the nucleotide thymidine (T) is found in place of uridine (U), they read the same as RNA codons. However, mRNA is actually synthesized using the antisense strand of DNA (3' to 5') as the template. [Discussion]  

This table could well be called the Rosetta Stone of life.  

The Genetic Code (DNA)  

TTT Phe TCT Ser TAT Tyr TGT Cys  

TTC Phe TCC Ser TAC Tyr TGC Cys  

TTA Leu TCA Ser TAA STOP TGA STOP  

TTG Leu TCG Ser TAG STOP TGG Trp  

CTT Leu CCT Pro CAT His CGT Arg  

CTC Leu CCC Pro CAC His CGC Arg  

CTA Leu CCA Pro CAA Gln CGA Arg  

CTG Leu CCG Pro CAG Gln CGG Arg  

ATT Ile ACT Thr AAT Asn AGT Ser  

ATC Ile ACC Thr AAC Asn AGC Ser  

ATA Ile ACA Thr AAA Lys AGA Arg  

ATG Met* ACG Thr AAG Lys AGG Arg  

GTT Val GCT Ala GAT Asp GGT Gly  

GTC Val GCC Ala GAC Asp GGC Gly  

GTA Val GCA Ala GAA Glu GGA Gly  

GTG Val GCG Ala GAG Glu GGG Gly  

*When within gene; at beginning of gene, ATG signals start of translation.  

Codon Bias  

All but two of the amino acids (Met and Trp) can be encoded by from 2 to 6 different codons. However, the genome of most organisms reveals that certain codons are preferred over others. In humans, for example, alanine is encoded by GCC four times as often as by GCG. Why should this be? The answer is uncertain but probably reflects a greater translation efficiency by the translation apparatus (e.g., ribosomes) for certain codons over their synonyms.  

Codon bias even extends to pairs of codons: wherever a human protein contains the amino acids Ala-Glu, the gene encoding those amino acids is seven times as likely to use the codons GCAGAG rather than the synonymous GCCGAA.  

Codon bias is exploited by the biotechnology industry to improve the yield of the desired product. The ability to manipulate codon bias may also usher in a era of safer vaccines. Link to a discussion.  

Exceptions to the Code  

The genetic code is almost universal. The same codons are assigned to the same amino acids and to the same START and STOP signals in the vast majority of genes in animals, plants, and microorganisms. However, some exceptions have been found. Most of these involve assigning one or two of the three STOP codons to an amino acid instead.  

Mitochondrial genes  

When mitochondrial mRNA from animals or microorganisms (but not from plants) is placed in a test tube with the cytosolic protein-synthesizing machinery (amino acids, enzymes, tRNAs, ribosomes) it fails to be translated into a protein.  

The reason: these mitochondria use UGA to encode tryptophan (Trp) rather than as a chain terminator. When translated by cytosolic machinery, synthesis stops where Trp should have been inserted.  

In addition, most  

* animal mitochondria use AUA for methionine not isoleucine and  

* all vertebrate mitochondria use AGA and AGG as chain terminators.  

* Yeast mitochondria assign all codons beginning with CU to threonine instead of leucine (which is still encoded by UUA and UUG as it is in cytosolic mRNA).

3 0
3 years ago
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