Which of the following is wrong for the description of protein synthesis (A) The large ribosomal subunit is constructed by proteins and ribosomal RNAs. (B) tRNA is necessary for protein synthesis. (C) DNA components are required. (D) GTP is required for the process.
Proteins
We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.
Protein Expression
The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.
Do not copy, answer fast and give type answer only
Thanks a lot
Which of the following is wrong for the description of protein synthesis
(A) The large ribosomal subunit is constructed by proteins and ribosomal RNAs. (B) tRNA is necessary for protein synthesis.
(C) DNA components are required.
(D) GTP is required for the process.
Alleles segregate independently of other alleles because:
(A) Maternal and paternal chromosomes line up on the either side of the equator during metaphase I.
(B) Crossing over in prophase I.
(C) Separation of homologous chromosomes in anaphase I.
(D) A and B
(E) A and C
Which statement is wrong for the transcription factors?
(A)They can bind to the region out of the promoter.
(B)They have two domains, one that binds DNA and the other that activates transcription. (C)Their functions are limited for transcription.
(D)They can bind to activators.
which statement about biotech is wrong?
(A)DNA microarray assay can detect gene expression (B)RT-PCR cannot detect gene level
(C)hybridization can detect RNA level
(D)gene expression
Which of the following contributes to maintaining the membrane potential the most?
(A)Na pump
(B)K pump
(C)K channel
(D)Na K ATPase
In pond water, protozoans pump out excess water by means of their (A) Water pump
(B) Contratile vacuole
(C) Mitochondria
(D) Cytoplasma
In kidney epithelial cells
(A) membrane proteins are located on the cell membrane uniformly
(B) cell-cell adhesion proteins are mainly located on the lateral side between cells
(C) cell extracellular matrix (ECM) interaction proteins are mainly located on the lateral side
(D) no carbohydrates can be found on the apical side
The action potential propagates along an axon from head to toe due to
(A)Na+ flows in through opened Na+ channel and repolarizes the neighboring regions (B) The rapid outflow of Na+ brings the membrane back to its resting state
(C)The sudden influx of Na+ and the activation of all Na+ channels
(D)The regional action cycle of the open-inactive-close of Na+ along the axon and depolarizes the neighboring regions
Which methods below cannot be used to track membrane protein ? (A)Fluorescence Recovery after Photobleaching (B)fluorescence-tagged cell fusion
(C)single particle tracking
(D)membrane domain analyzing
Alleles segregate independently of other alleles because:
(A)maternal and paternal chromosomes line up randomly on either side of the equator during metaphase I
(B)crossing over during prophase I
(C)cytokinesis
(D)separation of sister chromatids during anaphase I
(E)A and B
Select the option below that most accurately predicts the relative rates of diffusion of these molecules:
A. RNA>alanine>glucose>N2
B. Alanine>glucose>N2>RNA
C. Glucose>RNA>alanine>N2
D. N2>alanine>glucose>RNA
Which of the following humen aneuploidies, which is the one that has most severe impact on the health of the individual
(A)47,+21
(B)47,XXY
(C)47,XXX (D)47,XYY (E)45,
Step by step
Solved in 4 steps
