DNA Replication
The enzyme seals nicks in the phosphodiesterase backbone.
What is ligase?
This protein is responsible for the X shape of chromosomes because it holds sister chromatids together.
What is cohesin?
What are HDAC and methyl transferase?
70% of the DNA bases in a cell are adenine, so by Chargaff's rule, guanine would be present in this relative percentage.
What is 30%?
Nitrogenous bases are linked by this type of bond.
What are H-bonds?
The helicase is on the lagging strand in these organisms.
What are prokaryotes?
A pair of homologous chromosomes has this many telomeres after S phase.
What is 8?
The interaction of this histone protein forms the 30 nm fiber.
What is H1?
70% of the RNA bases in a cell are cytosine, so by Chargaff's rule, thymine would be present in this relative percentage.
What is 0%?
This structural feature confers greater specificity, allowing tighter binding when the DNA has a particular sequence.
What is the major groove?
This protein prevents secondary structures from forming on the lagging strand.
What are SSBs?
A organism has 6 pairs of homologous chromosomes at G1 phase, it would have this many sister chromatids at the start of mitosis.
What is 24?
Acetylation can occur on this amino acid. Provide the 1-letter code.
Of the strands CTGAGCA (Strand 1) and ATGTCTA (Strand 2), this strand has a higher relative melting temperature.
What is Strand 1?
What word classifies the type of bonds that are formed between the sugar and phosphate backbone?
This protein uses energy to relieve superhelical strain on sister chromatids prior to mitosis.
This type of microtubule is anchored at the centrosome and has its plus end at the cell cortex. Involved in Anaphase B, this MT relies on the retrograde motion of dynein.
What are astral microtubules?
Heterochromatic regions near telomeres are described by this adjective.
What is constitutive?
The sequence of an RNA strand is CGAAAC. Provide the beginning 3-bp sequence that will form a hairpin loop structure with this sequence. sequence.
What is GUU?
What mechanism underlies how chromatin remodeling complexes move?
Draw a bidirectional replication fork.
What is look at Zoe's slides? :)
A diploid animal cell has 10 pairs of homologous chromosomes in interphase, and thus has this many sister chromatids in G1 phase.
What is 0?
The ABC1 gene is normally highly expressed. You discover abnormal cells in which the ABC1 gene is expressed at a very low level. What type of protein might be inactive in the abnormal cells?
What is HAT or demethylase?
The inverse complement of this DNA strand is GTTGC.
What is GCAAC?
This strand is the template for lagging strand replication; think in terms of telomeres.
What is the 3' overhang strand?