Question

What percentage of offspring will be tall if a parent with two tall alleles (TT) is crossed with a parent with two short alleles (tt). Explain your answer.

Answer 1

Please help! I really need to figure this one out. Thanks.

Answer 2

1. If a pea plant’s alleles for height are tt, what is true of its parents? (1 point)
(0 pts) Both parents were tall.
(0 pts) Both parents were short.
(1 pt) Both parents contributed a recessive allele.
(0 pts) Both parents contributed a dominant allele.
1 /1 point
2. A tall plant (TT) is crossed with a short plant (tt). If the tall F1 pea plants are allowed to self-pollinate, (1 point)
(0 pts) the offspring will be of medium height.
(0 pts) all of the offspring will be tall.
(0 pts) all of the offspring will be short.
(1 pt) the offspring can be tall or short.
1 /1 point
3. When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited (1 point)
(1 pt) one allele from each parent.
(0 pts) two alleles from each parent.
(0 pts) three alleles from each parent.
(0 pts) four alleles from each parent.
1 /1 point
4. If one individual is Tt and another individual is tt, which of the following is true? (1 point)
(0 pts) The two have different genotypes and the same phenotype.
(0 pts) The two have the same genotype and the same phenotype.
(1 pt) The two have different genotypes and different phenotypes
(0 pts) The two have the same genotype and different phenotypes.
1 /1 point
5. Segregation of alleles means that (1 point)
(0 pts) two alleles representing the same gene remain paired when gametes are formed during meiosis.
(1 pt) two alleles representing the same gene separate when gametes are formed during meiosis.
(0 pts) two alleles representing the same gene remain paired when body cells are formed during mitosis.
(0 pts) two alleles representing the same gene separate when body cells are formed during mitosis.
1 /1 point