Answer:
1. 20 chromosomes
2. 10 chromosomes
3. 10 chromosomes
Explanation:
1. The process of mitosis results in the two daughter cells from the same parental cell with exactly the same genetic material. Thus the two cells contain the same number of chromosomes as the parent cell. Therefore if a cell with 20 chromosomes undergoes mitosis will result in the 20 chromosomes.
2. During meiosis I two daughter cells are formed with different ploidy levels as the number of the chromosome reduces to half. Therefore the cell with 20 chromosomes results in two cells with 10 chromosomes.
3. During meiosis II, the two daughter cells formed from meiosis I result in the formation of two more daughter cells with an exact number of chromosome number that is 10 chromosomes.
A woman that is heterozygous for neurofibromatosis and a normal man (homozygous recessive for neurofibromatosis) will exhibit a 1:1 phenotype ratio in offspring (Option d).
<h3>What is a rare dominant autosomal genetic disease?</h3>
A rare dominant autosomal genetic disease is a condition inherited in a dominant pattern in very low frequency in the population.
Dominant autosomal genetic diseases are expressed in a 1:1 ratio because they are localized in autosomal (somatic) chromosomes instead of X and Y chromosomes.
In conclusion, a woman that is heterozygous for neurofibromatosis and a normal man (homozygous recessive for neurofibromatosis) will exhibit a 1:1 phenotype ratio in offspring (Option d).
Learn more about dominant autosomal genetic diseases here:
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Answer:
Invertebrates.
Explanation:
Invertebrate refers to animals with no backbone.
F would be your correct answer
Answer:
The correct answer will be- Bacteria were able to utilize the food material in nine containers by producing respective enzymes.
Explanation:
The process of utilization of food material as a source of food depends on the Operon machinery of the Bacteria. The Operons gets activated in the presence of the inducer molecule which leads to the gene expression and the production of the enzymes to digest the food substance.
In the given condition, since the bacterial growth was observed in the nine containers out of ten shows that bacteria expressed the genes and produces enzymes to digest the substance in nine plates only and showed growth.
Thus, Bacteria were able to utilize the food material in nine containers by producing respective enzymes is the correct answer.