A physician who specializes in treatment of the gums is called a periodontist.
Answer:
If an organism has a total diploid number of 60 chromosomes, same number of chromosomes i. e. 60 are present in each daughter cell after mitosis while half number of chromosome i. e. 30 are present in each daughter cell after meiosis.
Explanation: Mitosis is a type of cell division in which a single cell is divided into two daughter cells having double number of chromosomes, while meiosis is a type of cell division in which a single cell is divided into four daughter cells having half number of chromosome.
Answer:
Option A
Explanation:
Autosomal dominant means that even a single affected allele in genotype of offspring can cause the disease.That means one carrier parent is sufficient to pass on the autosomal dominant disease to its next generation.
Given –
Woman is taster and father is nontatster. They mate and produce a nontaster daughter.
Hence, the genotype of the parents would be
Mother – XX’
Father – Y’X
Here allele “X” represents the non taster allele while the allele “ X’ and Y’ ” represents the taster allele
Cross between XX’ and Y’X
XY’, XX, X’Y’, XX’
Thus, the parents will have a taster boy
Answer:
Co-dominance because he expresses both of the alleles simultaneously
Explanation:
The ABO blood group system is used by humans. This blood group type is controlled by multiple alleles. Alleles A and B are both dominant over allele O but are co-dominant. Co-dominance is a type of inheritance pattern in which two alleles of a gene both express themselves i.e. neither is recessive.
This is the case of this family whose parents have a genotype of AO (blood type A) and BO (blood type B) respectively. The children have blood types A, B, and AB. However, the child with genotype AB possesses both the A and B allele, which are both expressed in his blood group (phenotype), hence, it can be said that the child is exhibiting CO-DOMINANCE for the blood group trait.
