Answer:
1,2
Explanation:
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. ... Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division.
Answer:
B
Explanation:
B: Since the drug inhibits transcription, only the mRNA that have already been transcribed can go on to be translated into the protein.
A: All proteins need Transfer RNA in order to be made.
C: Nuclear proteins are first made in the cytoplasm by ribosomes and then transported back to the nucleus via the nuclear pore complex.
D: Transcription is necessary for protein synthesis. This step cannot be skipped. Otherwise, no mRNA is made and translation cannot occur.
Answer: The chances that the baby will have type O is 25%
Explanation: Both the male and female are heterozygous for type B blood, this means that they both have one dominant allele for type B blood and one recessive allele for type O blood. Remember that in the ABO blood system, The alleles for type A and B are dominant while the allele for type O blood is recessive.
This means that the genotypes of both parents for type B blood is BO.
BO x BO = BB, BO, BO, and OO.
Phenotypically, BB and BO will manifest as type B blood while OO will manifest as type O blood.
From the cross between the two parents, one out of the four offsprings has type O blood, therefore the chances of a child having type O blood is 1/4 x 100 = 25%.
See the attached punnet square for further information
Answer:
Restriction endonuclease
Explanation:
It cut the DNA at specific sequence and it is very useful in biotechnology