Do all of them please Multiple choice 1) Although Dolly was only three years old, her chromosomes had the length of a (9-10)-year old sheep. Which of the following best describes why this occurred?A) The cell lines that created Dolly were aged prematurely in the labB) Nonhomologous recombinationC) A mutation enhanced the rate of agingD) Dolly was not a cloneE) The telomeres of the somatic cells that Dolly originated from were shorteningAnswer: 2) Which of the following terms represents a cell that can form any other cell of the organism?A) PluripotentB) TotipotentC) UnipotentAnswer: 3) Bone marrow transplants typically use what type of cells?A) Embryonic stem cellsB) Embryonic germ cellsC) Embryonic carcinoma cellsD) Hematopoietic stem cellsAnswer: 4) Which of the following is an example of a pluripotent cell?A) Embryonic stem cellsB) Red blood cellsC) Fetal heart cellsD) Umbilical cord bloodE) Nerve cellsAnswer: 5) An organism that has integrated recombinant DNA into its genome is called _________.A) Wild-typeB) Transgenic C) MyogenicD) None of the aboveAnswer: 6) Which of the following technologies was used to create (Golfish), the first genetically modified organism to be sold as a pet?A) Gene modificationB) Gene knockoutC) Gene additionD) Reproductive cloningAnswer: 7) A viable alternative to the use of embryonic stem cells is __________.A) EG cellsB) Undifferentiated cellsC) Hematopoietic stem cellsD) Induced pluriopotent stem cellsAnswer: 8) The ectoderm, mesoderm, and endoderm are formed during the ________ stage of embryogenesis.A) fertilizationB) cellular blastodermC) syncytial blastodermD) gastrulationAnswer: 9) Pole cells are responsible for forming what structures in an adult organism?A) liver cellsB) gametesC) nerve cellsD) hematopoietic stem cellsAnswer: 10) Gap genes and pair-rule genes are examples of genes that determine ________.A) the formation of body segmentsB) the formation of the primary cell layersC) the formation of cellular adhesionD) the formation of the major body axisAnswer:
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.
Do all of them please
Multiple choice
1) Although Dolly was only three years old, her chromosomes had the length of a (9-10)-
year old sheep. Which of the following best describes why this occurred?
A) The cell lines that created Dolly were aged prematurely in the lab
B) Nonhomologous recombination
C) A mutation enhanced the rate of aging
D) Dolly was not a clone
E) The telomeres of the somatic cells that Dolly originated from were shortening
Answer:
2) Which of the following terms represents a cell that can form any other cell of the
organism?
A) Pluripotent
B) Totipotent
C) Unipotent
Answer:
3) Bone marrow transplants typically use what type of cells?
A) Embryonic stem cells
B) Embryonic germ cells
C) Embryonic carcinoma cells
D) Hematopoietic stem cells
Answer:
4) Which of the following is an example of a pluripotent cell?
A) Embryonic stem cells
B) Red blood cells
C) Fetal heart cells
D) Umbilical cord blood
E) Nerve cells
Answer:
5) An organism that has integrated recombinant DNA into its genome is called _________.
A) Wild-type
B) Transgenic
C) Myogenic
D) None of the above
Answer:
6) Which of the following technologies was used to create (Golfish), the first genetically
modified organism to be sold as a pet?
A) Gene modification
B) Gene knockout
C) Gene addition
D) Reproductive cloning
Answer:
7) A viable alternative to the use of embryonic stem cells is __________.
A) EG cells
B) Undifferentiated cells
C) Hematopoietic stem cells
D) Induced pluriopotent stem cells
Answer:
8) The ectoderm, mesoderm, and endoderm are formed during the ________ stage of
embryogenesis.
A) fertilization
B) cellular blastoderm
C) syncytial blastoderm
D) gastrulation
Answer:
9) Pole cells are responsible for forming what structures in an adult organism?
A) liver cells
B) gametes
C) nerve cells
D) hematopoietic stem cells
Answer:
10) Gap genes and pair-rule genes are examples of genes that determine ________.
A) the formation of body segments
B) the formation of the primary cell layers
C) the formation of cellular adhesion
D) the formation of the major body axis
Answer:
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