Answer:Deoxyribonucleic acid is a molecule composed of two chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid (RNA) are nucleic acids; alongside proteins, lipids .... In addition to RNA and DNA, many artificial nucleic acid ...
Explanation:
Answer:
it is : The basic chemical composition of the universe had been determined.
Explanation:
Answer: The research of British naturalist Alfred Russel Wallace (1823-1913) played a pivotal role in developing the theory of natural selection. ... Wallace collected more than 100,000 insect, bird and animal specimens, which he gave to British museums. By 1855, Wallace had come to the conclusion that living things evolve.
Explanation:
Red-green color blindness is due to a mutant gene in the X chromosome. An XX female with normal color vision and an XY male with normal color vision have a child with karyotype XXY who is color blind. The likely explanation is that the:_--------.
father was heterozygous for the color-blindness mutation.
mother was heterozygous for the color-blind mutation.
father had CNV of the color-blind mutation.
mother had CNV of the color-blind mutation.
None of the other answer options is correct.
Answer:
mother was heterozygous for the color-blind mutation.
Explanation:
Colorblindness is a recessive disorder. This means that it is expressed only in homozygous genotypes. The responsible gene is present on the X chromosomes. A colorblind female would have the genotype X^cX^c where c is the recessive allele of the gene present on the X chromosome responsible for color blindness. A female with genotype X^cX would have normal visible but would serve as a carrier.
Both the female and the male have normal genotype. Since they had a colorblind child, it means that the female was a heterozygous carrier for the trait and imparted the responsible allele to the child. The male can not serve as a carrier for X linked recessive disorder since they have only one copy of the X chromosome. Therefore, the female was a heterozygous carrier.
During exocytosis, the vesicle membranes get integrated in the plasma membrane and during endocytosis, the plasma membrane pushes itself inward to form the vesicles. ... The other proteinous bodies of the vesicles are recycled by the cell by breaking them down and diffuses them in the cell cytosol
