Answer: Option C
Explanation:
The human karyotype consists of 23 pairs of chromosomes. If a single pair of chromosome is picket out of the whole karyotype then the chromosome pair will have the some similarities or will have in common some traits.
The length of the chromosome, centromere position, traits and staining pattern will be same for this pair of chromosome.
Hence, the correct answer is Option C
Asexual reproduction
Sexual reproduction
Explanation:
In asexual reproduction the offspring are genetically identical to the parents. Asexual reproduction include binary fission, fragmentation and vegetative propagation.
It involves direct inheritance of the genetic copy of the parent without any alteration. The parent gives rise to the offspring without any intermediary process.
In binary fission, the parent simply divides into two to form a new ones.
For sexual reproduction, there is fusion of gametes which carries genetic materials contributed by both parents. The offspring is an offshoot of the genetic combination of the traits of two parents.
Therefore, genetically, offspring produced by sexual reproduction have a distinct copy of the genotypes they posses. They are different from those of the parents.
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Answer:
Cartilage has a flexible matrix that can accommodate mitosis of chondrocytes. True
Explanation:
Cartilage is a tissue, and there can be three different types: fibrous, hyaline and elastic. The cells in each one are in different positions and all theses types can be found in different parts of the body. The cartilage's matrix is made up of glycosaminoglycans, proteoglycans, collagen fibers and, sometimes, elastin. The chondrocytes are specialized cells that produce collagenous extracellular matrix, abundant ground substance that is rich in proteoglycan and elastin fibers.
Answer:
The replication (exact duplication) of DNA begins with the unwinding of the double helix.
Explanation:
DNA replication is the first step of the central dogma of molecular biology which deals with the formation of 2 daughter DNA molecules from a single parental DNA.
The replcation begin with unwinding of DNA double helix by the breakage of hydrogen bonds between the complementary base pairs resulting in the formation of replication fork.
This incident occur by the catalytic activity of Helicase or dna B protein.
