What's the main term used to locate in the alphabetic index for acute perforated gastrojejunal ulcer

Part A If you want to affect chromatin packaging, which amino acid could you mutate to affect both histone acetylation and methy

attashe74 [19]

Answer:

Lysine

Explanation:

lysine residues on the histone tails of the octamer cn be activated by both acetylation and methylation patterns to influence accessibility or silencing of the genes respectiviely. for example, acetylation of H3K27 (histone 3 lysine residue 27) brings about a region of active chromatin allowing access to transcription activity while its trimethylation will cause silencing of the associated gene at that particular area (no expression of that gene)

5 0

2 years ago

What causes chemical weathering?

m_a_m_a [10]

Natural acids because chemicals erode rocks in chemical weathering

7 0

3 years ago

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Peppered moths come in two colors, black and white. What did Kettlewell show, with regard to peppered moth populations and tree

Sauron [17]

There were more dark moths around factories because trees were darker near factories because of pollution. More light moths were found in the country away from the factories, in the forests with no factory pollution

3 0

3 years ago

Why did primates evolve?

ivolga24 [154]

Humans did not evolve from apes, gorillas or chimps. We are all modern species that have followed different evolutionary paths, though humans share a common ancestor with some primates, such as the African ape. The timeline of human evolution is long and controversial, with significant gaps.

4 0

3 years ago

What is the probability that each of the following pairs of parents will produce the given offspring: 1. AABbCc x aabbcc à AaBbC

ICE Princess25 [194]

Answer:

1) AaBbCc, 50% - 2) AAbbCC, 3,125% - 3) AaBbCc is 12,5%.

Explanation:

1º cross.

Parental) AABbCC x aabbcc

Gametes) ABC AbC ABC AbC ABC AbC ABC AbC

abc abc abc abc abc abc abc abc

Punnet Square) Only filled with the progeny genotype AaBbCc.

ABC AbC ABC AbC ABC AbC ABC AbC

abc AaBbCc --- AaBbCc --- AaBbCc --- AaBbCc ---

F1 Genotype) 32/64 AaBbCc

32/64 AabbCc (shown as the symbol "---" in the

punnet square)

The probability of producing offspring with genotype AaBbCc is 50%.

---------------------------------------------------------------------

2º cross.

Parental) AABbCc x AaBbCc

Gametes) ABC ABc AbC Abc ABC ABc AbC Abc

ABC ABc AbC Abc aBC aBc abC abc

Punnet Square) Only filled with the progeny genotype AAbbCC.

ABC ABc AbC Abc ABC ABc AbC Abc

ABC --- --- --- --- --- --- --- ---

ABc --- --- --- --- --- --- --- ---

AbC --- --- AAbbCC --- --- --- AAbbCC ---

Abc --- --- --- --- --- --- --- ---

aBC --- --- --- --- --- --- --- ---

aBc --- --- --- --- --- --- --- ---

abC --- --- --- --- --- --- --- ---

abc --- --- --- --- --- --- --- ---

F1 Genotype) 2/64 AAbbCC

The rest of the progeny have different genotypes that are represented with the symbol "---" in the punnet square.

The probability of producing offspring with genotype AAbbCC is 3,125%.

--------------------------------------------------------------------

3º cross.

Parental) AaBbCc x AaBbCc

Gametes) ABC ABc AbC Abc aBC aBc abC abc

ABC ABc AbC Abc aBC aBc abC abc

Punnet Square) Only filled with the progeny genotype AaBbCc.

ABC ABc AbC Abc aBC aBc abC abc

ABC --- --- --- --- --- --- --- AaBbCc

ABc --- --- --- --- --- --- AaBbCc ---

AbC --- --- --- --- --- AaBbCc --- ---

Abc --- --- --- --- AaBbCc --- --- ---

aBC --- --- --- AaBbCc --- --- --- ---

aBc --- --- AaBbCc --- --- --- --- ---

abC --- AaBbCc --- --- --- --- --- ---

abc AaBbCc --- --- --- --- --- --- ---

F1 Genotype) 8/64 AaBbCc

The rest of the progeny have different genotypes that are represented with the symbol "---" in the punnet square.

The probability of producing offspring with genotype AaBbCc is 12,5%.

7 0

3 years ago