They are called bronchi
Answer:
alveoli
Explanation:
b. mitochondria
c. ribosome
d. vacuole
This part of the cell stores wastes, water or food is vacuole. TThus, option D is correct.
The vacuole is an organelle found in both plant and animal cells that stores various substances, including wastes, water, and food. It plays a crucial role in regulating the cell's internal environment and maintaining cell turgor pressure in plant cells.
Lysosomes are responsible for the digestion and elimination of cellular waste materials, mitochondria are the powerhouse of the cell involved in energy production, and ribosomes are involved in protein synthesis.
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Answer:
D
Explanation:
Answer and Explanation:
All cells including the gametes contain chromosomes. Each gamete cell after cell division contains 23 chromosomes. After fertilization, the diploid number of chromosomes which is 46 is restored in the zygote.
Meiosis, a type of cell division, has two phases which eventually lead to the formation of four daughter cells with equal number of chromosomes. Gametes are haploid in nature and thus meiosis I involves separation of homologous chromosomes hence the reduction in the chromosome number. Meiosis II involves separation of sister chromatids in the daughter cells resulting in four daughter cells with 23 chromosomes.
Meiosis ensures that chromosoe number does not double with each successive generation as the resulting daughter cells are gametes, two of which must fuse to form a zygote.
b. Enter the sequence of bases as capital letters with no spaces and no punctuation. Begin with the first base added to the growing RNA strand, and end with the last base added.
Answer:
CCGAGU
Explanation:
DNA transcription:
DNA transcription is the process through which DNA double helical strand is converted into single stranded RNA molecule.
During transcription two strands of DNA are named differently i.e Template strand and coding strand.
Template strand:
Strand from which RNA is producing is known as template strand while
Coding strand:
The strand which is opposite to the template strand is known as the coding strand. Coding strand is the DNA strand whose nucleotide sequence resembles to the RNA transcript base sequence except thymine which is replaced by uracil.
Correct Answer:
Template strand from 5' to 3' reads GGCTCA. and
In this question CCGAGT is coding strand.
RNA sequence is same as coding sequence except T which is replaced by U so sequence of RNA becomes
CCGAGU
b. The structure of protein.
c. How DNA is passed down to offspring.
d. How chromosomes are arranged in the nucleus.
The order of bases along a gene determines the structure of a protein (Option b).
In conclusion, the order of bases along a gene determines the structure of a protein (Option b).
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b. missense
c. insertion
d. frameshift
Ans. (b). missense.
Sickle cell anemia is an inherited blood disorder, due to defect in oxygen-transporting protein, hemoglobin. It is caused by a mutation in a gene that codes for hemoglobin that substitutes GAG codon (that codes for glutamic acid) with codon GUG (that codes for valine).
It is known as a missense mutation, which leads to formation of a non-functional or defected protein (hemoglobin). The defected hemoglobin gets polymerized and forms fibers that give sickle-shape to the red blood cells.
Thus, the correct answer is option (b).
The type of mutation that causes sickle cell anemia is called missense. That is option B
Mutation is defined as the alteration that occurs in the gene of an organism which leads to defective formation in the organism.
Sickel cell anemia occurs when there is missense mutation at a single point in their DNA.
Therefore, the type of mutation that causes sickle cell anemia is called missense.
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