In the F1 he genotype was Tt and T is dominant tall and t is recessive short and so they were all tall.
<span>In the F2 the genotypes are TT Tt Tt tt since the gametes are T and t. </span>
<span>One short (tt) to three tall (TT Tt Tt)</span>
Answer: The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things.
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Answer:
. Freshwater ecosystems are the least common, occurring on only 1.8 percent of Earth's ... These levels are used to describe ecosystem structure and dynamics. .
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The correct answer will be-fertilization.
Explanation:
The chromosome number in an organism is known as the ploidy level which is represented by either n or x. The organism may exhibit 1 set of chromosomes represented with n and is termed haploid and a pair of chromosomes called diploid level represented by 2n.
The organism can switch from x to 2x at the time of fertilization when separate haploid male and female gametes fuse together to form a diploid cell called zygote which further grows into an organism.
Thus, fertilization is the correct answer.