A heterozygous pea plant that is tall with yellow seeds, TtYy, is allowed to sel
ID: 12828 • Letter: A
Question
A heterozygous pea plant that is tall with yellow seeds, TtYy, is allowed to self-fertilize. Gametes produced?Cross over is the physical exchange of chromosome pieces. Cross over occurs during which of the following events?
A. Mitosis
B. Meiosis I
C. Meiosis II
D. Both Mitosis and Meiosis I
E. Both Mitosis and Meiosis II
Which of the following statement about double fertilization is correct?
A. It occurs in higher plants
B. In double fertilization, one sperm fertilizes the egg, a second sperm unites with polar cell to produce the endosperm
C. Double fertilization ensures that the endosperm (which uses a large amount of plant resources) will develop only when an egg cell has been fertilized
D. all of the above statement is correct
E. All the above statement is incorrect
A true breeding line of green pod pea plants is crossed with a true-breeding line of yellow pod plants. All of their offspring have green pods. From this information it can be stated that the green color is _____ to the yellow color.
recessive
dominant
subservient
Blended
In a dihybrid cross using Mendelian inheritance, if both parents are heterozygous for both traits, what will be the phenotypic ratio of their offspring?
3 : 1
1 : 2 : 1
1 : 1
9 : 3 : 3 : 1
The genetic composition of an individual is called its _____________.
phenotype
Genotype
The sex of fruit fly with two XX chromosome and four sets of autosome will be
Male
Female
Explanation / Answer
A heterozygous pea plant that is tall with yellow seeds, TtYy, is allowed to self-fertilize. Gametes produced?
Cross over is the physical exchange of chromosome pieces. Cross over occurs during which of the following events?
A. Mitosis
B. Meiosis I
C. Meiosis II
D. Both Mitosis and Meiosis I
E. Both Mitosis and Meiosis II
Which of the following statement about double fertilization is correct?
A. It occurs in higher plants
B. In double fertilization, one sperm fertilizes the egg, a second sperm unites with polar cell to produce the endosperm
C. Double fertilization ensures that the endosperm (which uses a large amount of plant resources) will develop only when an egg cell has been fertilized
D. all of the above statement is correct
E. All the above statement is incorrect
A true breeding line of green pod pea plants is crossed with a true-breeding line of yellow pod plants. All of their offspring have green pods. From this information it can be stated that the green color is _____ to the yellow color.
recessive
dominant
subservient
Blended
In a dihybrid cross using Mendelian inheritance, if both parents are heterozygous for both traits, what will be the phenotypic ratio of their offspring?
3 : 1
1 : 2 : 1
1 : 1
9 : 3 : 3 : 1
The genetic composition of an individual is called its _____________.
phenotype
Genotype
The sex of fruit fly with two XX chromosome and four sets of autosome will be
Male
Female
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