TTU BIOL 1401 - Exam 3 - Smith
Questions & Answers (Grade A+)
What is sexual reproduction and how does it differ from asexual
reproduction? -
correct answer ✅SEXUAL reproduction is the mix of genes of two
individuals. It involves mitosis AND meiosis. ASEXUAL reproduction
only involves mitosis.
What is meiosis? -
correct answer ✅Produce a gamete that has ONE set of
chromosomes.
Why do plants have sex? -
correct answer ✅Genetic variation, to make more plants, plants
have better survival if they get two different sets of genes from
each parent.
What is a haploid, diploid, and polyploid? -
correct answer ✅•Haploid- (1 n) cells with one set of
chromosomes
•Diploid- (2 n) cells with two sets of chromosomes
•Polyploid- cells more than two sets of chromosomes
, TTU BIOL 1401 - Exam 3 - Smith
Questions & Answers (Grade A+)
Why are polyploid plants higher yielding than diploid plants? -
correct answer ✅They have more than two sets of chromosomes
What is the alternation of generations? -
correct answer ✅Alternation between a diploid (2n; sporophyte
generation) and a haploid (1n; gametophyte generation) in sexually
reproducing organisms.
What is the difference between a gametophyte and a sporophyte? -
correct answer ✅Gametophyte- capable of forming gametes
directly from its cell. Always haploid cells.
Sporophytes- life cycle of a plant in which plant possess diploid
cells. Produces haploid spores through meiosis in its diploid cells.
What is the biological species concept? -
correct answer ✅Groups of actually or potentially interbreeding
natural populations which are REPRODUCTIVELY ISOLATED from
each other.
What is genetics? -
correct answer ✅Sets of genes an organism carries
Questions & Answers (Grade A+)
What is sexual reproduction and how does it differ from asexual
reproduction? -
correct answer ✅SEXUAL reproduction is the mix of genes of two
individuals. It involves mitosis AND meiosis. ASEXUAL reproduction
only involves mitosis.
What is meiosis? -
correct answer ✅Produce a gamete that has ONE set of
chromosomes.
Why do plants have sex? -
correct answer ✅Genetic variation, to make more plants, plants
have better survival if they get two different sets of genes from
each parent.
What is a haploid, diploid, and polyploid? -
correct answer ✅•Haploid- (1 n) cells with one set of
chromosomes
•Diploid- (2 n) cells with two sets of chromosomes
•Polyploid- cells more than two sets of chromosomes
, TTU BIOL 1401 - Exam 3 - Smith
Questions & Answers (Grade A+)
Why are polyploid plants higher yielding than diploid plants? -
correct answer ✅They have more than two sets of chromosomes
What is the alternation of generations? -
correct answer ✅Alternation between a diploid (2n; sporophyte
generation) and a haploid (1n; gametophyte generation) in sexually
reproducing organisms.
What is the difference between a gametophyte and a sporophyte? -
correct answer ✅Gametophyte- capable of forming gametes
directly from its cell. Always haploid cells.
Sporophytes- life cycle of a plant in which plant possess diploid
cells. Produces haploid spores through meiosis in its diploid cells.
What is the biological species concept? -
correct answer ✅Groups of actually or potentially interbreeding
natural populations which are REPRODUCTIVELY ISOLATED from
each other.
What is genetics? -
correct answer ✅Sets of genes an organism carries
