Biology, 29.01.2020 05:54 sliverx201
Which statements about the modification of chromatin structure in eukaryotes are true?
1.dna is not transcribed when chromatin is packaged tightly in a condensed form
2.some forms of chromatin modification can be passed on to future generations of cells
3.acetylation of histone tails in chromatin allows access to dna for transcription
4.acetylation of histone tails is a reversible process.
5. methylation of histone tails in chromatin can promote condensation of the chromatin
6. deacetylation of histone tails in chromatin loosens the association between nucleosomes and dna
Answers: 1
Biology, 21.06.2019 20:00, laurachealsy923
Consider an organism that is eukaryotic, found in both unicellular and multicellular forms, may resemble a plant but is not photosynthetic, has chitin in its cell walls, and absorbs organic nutrients from decomposing material in the environment. this organism would be classified as which of the following types of organisms? a. fungib. protozoac. bacteriad. archaea
Answers: 1
Biology, 22.06.2019 08:10, Haneendye123
In sweet pea, gene c is responsible for color production and gene p is responsible for the purple color pigment. both of them are located on two different loci on different chromosomes. the flowers will be purple only when the plant has the genotypes as c_p_. no color will be produced with genotypes: ccpp, ccpp, ccpp, ccpp. thus, gene c controls the expression of gene p. what pattern of inheritance is exhibited here? a. pleiotropy b. epistasis c. multiple alleles
Answers: 1
Biology, 22.06.2019 09:30, lilyrockstarmag
Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?
Answers: 2
Which statements about the modification of chromatin structure in eukaryotes are true?
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