True or False: Only one strand of the DNA double helix serves as a template for RNA synthesis while the other only serves as a complimentary strand. True or False: The nucleus is the only membrane surrounded organelle that has pores in its membrane and is directly connected to the endoplasmic reticulum. True or False: The cell theory was created by Charles Darwin after reading the works of Schwann and Schleiden. True or False: The number of chromosomes is a good indicator for the determination of how closely species are related to each other? True or False: Plant cells have a cytoskeleton and use it for active movements of organelles.
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One strand of the DNA double helix serves as a template for RNA synthesis, while the other serves as a complimentary strand. ** Show more…
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True or false 1. During DNA replication, identical copies are made of both DNA strands. 2. The translation requires the action of the primase. 3. All RNAs produced in transcription are translated. 4. Maturation of a eukaryotic mRNA involves the addition of a modified Guanine at the 5 'end and a poly A tail at the 3' end. 5. Alleles are on homologous chromosomes. 6. Prokaryotic ribosomes are 70S while eukaryotes are 80S. 7. A gene can be controlled for total dominance and incomplete dominance. 8. The leader strand is synthesized continuously from 3'-5 '.
Shyam P.
True (T) or false (F)? The centromere is the attachment site for the kinetochore and base pairs are held together by three hydrogen bonds. The 5' end of a DNA strand always has sugar and the end always has base. Some DNA does not code for any proteins - a gene can be defined as a region of DNA that codes for RNA. Interphase G2. In DNA replication, the leading strand has continuous replication, and the lagging strand has discontinuous replication. When during the cell cycle does DNA replication occur? A) G1 B) S C) G2 D) mitosis. The role of initiator proteins is to recognize and bind to the specific nucleotide sequence of the origin of replication. Why are origins of replication AT-rich? AT base pairs are held together by only two hydrogen bonds, so less energy is required to separate the two strands. AT base pairs form the replication bubble.
Adi S.
Is it true or false? Write T or F. During DNA replication, DNA double helix is opened at the replication origins and the exposed single strands serve as templates for copying DNA. mRNA Splicing allows the production of several different proteins from a single gene. Single-nucleotide polymorphisms (SNPs) are points in the genome that differ by a single nucleotide pair between one person and another. One SNP can be found per 1000 nucleotide pairs in human. Activation of oncogenes and loss of tumour suppressor genes promote cancer formation. Color blindness is a genetic disease often found in male but not in female. If a father is a colour blinded, there are a high risk of his children being colour blinded. Human has more than 200 different cell types. Different cell types are derived from different gene expression pattern, not from the alternation in the genomic DNA sequence.
Rachel G.
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