6 - Molecular biology of the cell Flashcards
The structure marked 1 is the nucleus:
Select all that apply
RNA exits the nucleus here
Nuclear pores
Contains nucleic acids and proteins
RNA making factory
Nucleolus
Nucleus
Nucleus
Contains nucleic acids and proteins
The structure marked 2 is the nuclear pores:
Select all that apply
RNA exits the nucleus here
Nuclear pores
Contains nucleic acids and proteins
RNA making factory
Nucleolus
Nucleus
RNA exits the nucleus here
Nuclear pores
The structure marked 3 is the nucleolus:
Select all that apply
RNA exits the nucleus here
Nuclear pores
Contains nucleic acids and proteins
RNA making factory
Nucleolus
Nucleus
RNA making factory
Nucleolus
Match the numbered structure to its identity:
red and green nucleic acids bound together by hydrogen bonds
1
1-DNA base pairs
Match the numbered structure to its identity: 2
Sequence of nucleotides in DNA
2-gene
Match the numbered structure to its identity: 3
Histone-DNA packed into a ball-like structure “beads on a string”
3-Nucleosome
Match the numbered structure to its identity: 4
Positively charged proteins DNA wraps around
4-Histones
Match the numbered structure to its identity: 5
Nucleosomes coiled into a fiber called..
5-Chromatin
Match the numbered structure to its identity: 6
Single continuous DNA molecule that join making two almost identical/slightly different DNA
6-Chromatid
Match the numbered structure to its identity: 7
Where the chromatids touch in the center
7-Centromere
Match the numbered structure to its identity: 8
2 chromatids packed together to make…
8-Chromosome
The ____, just upstream of the gene, is important for binding of transcription factor TFIID.
TATA box
YAYA sequence
LALA
YOLO baby
TATA box
The transcription complex involves ___ transcription factors.
Many
Three
One
Two
Many!
The spliceosome forms a ____ in the RNA as the first step in removing the intron.
Kink
Loop
Fork
Knot
Loop
The process of removing the introns from pre-mRNA is called:
Spoofing
Splicing
Splitting
Biffing
Splicing
Soon after the start of transcription a ____ is added to the 5’ end of the pre-mRNA.
Methylated cap
Doug cap
Poly-A tail
Campaign cap
Methylated cap
After completion in of transcription at the 3’ end of the pre-mRNA poly A polymerase synthesizes the:
Methylated cap
PolyA tail
Campaign cap
Polly tail
PolyA tail
Messenger RNA is used by the ribosome to make:
RNA
Nucleotides
Proteins
DNA
Proteins