Answer: The correct answer is-
B. Yy
As per the information in the question, yellow (depicted by Y allele) seed color is a dominant trait whereas green seed color is a recessive trait ( depicted by y allele).
A dominant trait always masks the expression of a recessive trait.
Presence of single dominant allele ( such as in Yy, which shows heterozygous dominant genotype) in the genotype can produce a dominant trait whereas recessive trait is only expressed when its genotype is homozygous recessive (such as yy that is both alleles should be recessive allele) .
A plant with genotype Yy will form two gametes that is Y and y.
When such plants are allowed to interbreed, there is a probability of 25% of producing green seeds in the next generation.
Refer punett square.
Answer:
Mainly rainfall, temperature and situation.
Answer:
mangoose > snake > hawk > small bird > caterpillar > grass
Explanation:
easy
Answer:
C) Because apoptosis genes kill cells, natural selection is seldom involved in apoptosis pathways.
Explanation:
Apoptosis is a natural process taking in the cell which causes the physiological and biochemical changes in the cell which could cause the death of the cell.
The apoptosis is controlled at the genetic level therefore apoptosis is also known as the programmed cell death.
The studies have shown that the process is involved in the development of the finger and the toes in humans and the sequences controlling the process has been conserved during the evolution in a different organism.
This shows that humans and nematode have the same conserved sequence of apoptosis but the natural selection does not control the apoptosis.
Thus, the selected option is the correct answer.
