Dolly is the first mammal to have been successfully cloned from an adult cell Which of the following statement/s is/are most relevant to the birth of Dolly? I. It suggests that human could be cloned. II. It proves that specialized cells could be used to create an exact copy of the animal they came from. III. It improves the production of milk, meat, and other products from livestock. IV. It proves that animals could be cloned to have gene mutations that help scientists study diseases that develop in the animals. A. II only B. I and II C. III, and IV D. II, III, and IV Which of the following statements best explain the significance of mitosis and ? A. Both mitosis and meiosis produce diploid cells which responsible for the continuity of life. B. Many single-celled organisms rely on mitosis and meiosis as their primary means of asexual reproduction C. replication, cells have another interesting choice, whether they want to make an identical copy, or do they want to make four half-copies D. Meiosis creates the gametes that make reproduction possible while mitosis allows the organism to grow and develop in order to allow for later further reproduction What will happen if meiosis does not exist? A. No cloning B. No mutation C. No formation of gametes D. Wounds and other skin damage will not be repaired. What is called when cells in the body grow uncontrollably and spread to other parts? A. Aneuploidy B. Cancer C. Polyploidy D. Tumor
Molecular Techniques
Molecular techniques are methods employed in molecular biology, genetics, biochemistry, and biophysics to manipulate and analyze nucleic acids (deoxyribonucleic acid (DNA) and ribonucleic acid (RNA)), protein, and lipids. Techniques in molecular biology are employed to investigate the molecular basis for biological activity. These techniques are used to analyze cellular properties, structures, and chemical reactions, with a focus on how certain molecules regulate cellular reactions and growth.
DNA Fingerprinting and Gel Electrophoresis
The genetic makeup of living organisms is shown by a technique known as DNA fingerprinting. The difference is the satellite region of DNA is shown by this process. Alex Jeffreys has invented the process of DNA fingerprinting in 1985. Any biological samples such as blood, hair, saliva, semen can be used for DNA fingerprinting. DNA fingerprinting is also known as DNA profiling or molecular fingerprinting.
Molecular Markers
A known DNA sequence or gene sequence is present on a chromosome, and it is associated with a specific trait or character. It is mainly used as a genetic marker of the molecular marker. The first genetic map was done in a fruit fly, using genes as the first marker. In two categories, molecular markers are classified, classical marker and a DNA marker. A molecular marker is also known as a genetic marker.
DNA Sequencing
The most important feature of DNA (deoxyribonucleic acid) molecules are nucleotide sequences and the identification of genes and their activities. This the reason why scientists have been working to determine the sequences of pieces of DNA covered under the genomic field. The primary objective of the Human Genome Project was to determine the nucleotide sequence of the entire human nuclear genome. DNA sequencing selectively eliminates the introns leading to only exome sequencing that allows proteins coding.
Dolly is the first mammal to have been successfully cloned from an adult cell Which of the following statement/s is/are most relevant to the birth of Dolly?
I. It suggests that human could be cloned.
II. It proves that specialized cells could be used to create an exact copy of the animal they came from.
III. It improves the production of milk, meat, and other products from livestock.
IV. It proves that animals could be cloned to have gene mutations that help scientists study diseases that develop in the animals.
A. II only
B. I and II
C. III, and IV
D. II, III, and IV
Which of the following statements best explain the significance of mitosis and ?
A. Both mitosis and meiosis produce diploid cells which responsible for the continuity of life.
B. Many single-celled organisms rely on mitosis and meiosis as their primary means of asexual reproduction
C. replication, cells have another interesting choice, whether they want to make an identical copy, or do they want to make four half-copies
D. Meiosis creates the gametes that make reproduction possible while mitosis allows the organism to grow and develop in order to allow for later further reproduction
What will happen if meiosis does not exist?
A. No cloning
B. No mutation
C. No formation of gametes
D. Wounds and other skin damage will not be repaired.
What is called when cells in the body grow uncontrollably and spread to other parts?
A. Aneuploidy
B. Cancer
C. Polyploidy
D. Tumor
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