Description : When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is (a) tetraploidy (b) pentaploidy (c) diploidy (d) triploidy.
Last Answer : (a) tetraploidy
Description : .In Pinus/Cycas/gymnosperms, the endosperm is (a) triploid (b) haploid (c) diploid (d) tetraploid.
Last Answer : (b) haploid
Description : Endosperm in gymnosperm is............. a) haploid b)diploid c)triploid d)tetraploid
Last Answer : a) haploid
Description : Durring which stage a diploid cell becomes tetraploid in mitosis:-
Last Answer : Durring which stage a diploid cell becomes tetraploid in mitosis:- A. `G_(2)` B. Prophae C. Metaphase D. Anaphase
Description : . If a diploid cell is treated with colchicine then it becomes (a) triploid (b) tetraploid (c) diploid (d) monoploid
Last Answer : (b) tetraploid
Description : Triticum aestivum is a (A) Border irrigation (B) Check basin irrigation (A) Hexaploid (B) Diploid (C) Tetraploid (D) Euploid
Last Answer : (A) Hexaploid
Description : Tetraploid watermelon must be pollinated by ____ plants to produce a seedless watermelon a. Triploid b. Aneuploid c. Diploid d. Tetraploid
Last Answer : Diploid
Description : Triticum aestivum, the common bread wheat is – a) Tetraploid b) Hexaploid c) Haploid d) Diploid
Last Answer : b) Hexaploid
Description : 102.Perisperm differs from endosperm in (a) being a diploid tissue (b) its formation by fusion of secondary nucleus with several sperms (c) being a haploid tissue (d) having no reserve food.
Last Answer : (a) being a diploid tissue
Description : .The endosperm of gymnosperm is (a) diploid (b) polyploid (c) triploid (d) haploid.
Last Answer : (d) haploid.
Description : 2. Perisperm and endosperm differ in a. Being a diploid tissue b. Being a haploid tissue c. Having no reserve food d. Formation of perisperm by fusion of the secondary nucleus with many sperms
Last Answer : d. Formation of perisperm by fusion of the secondary nucleus with many sperms
Description : Perisperm differs from endosperm in :a)Being a diploid tissueb)Its formation by fusion of secondary nucleus with several sperms c)Being a haploid tissued)Having no reserve food
Last Answer : 3Being a diploid tissue
Description : .A normal green male maize is crossed with albino female. The progeny is albino because (a) trait for a albinism is dominant (b) the albinos have biochemical to destroy plastids derived from green male (c) plastids are inherited from female parent (d) green plastids of male must have mutated.
Last Answer : (c) plastids are inherited from female paren
Description : A double homozygous yello round plant of Pea is crossed with green wrinkled plant. The offspring shall be of
Last Answer : A double homozygous yello round plant of Pea is crossed with green wrinkled plant. The offspring shall ... Two types C. Four types D. Several types
Description : What is the ploidy of the calyptra? -Biology
Last Answer : answer:
Description : What is the ploidy level of a megaspore? -Biology
Description : Endosperm is formed during the double fertilisation by (a) two polar nuclei and one male gamete (b) one polar nuclei and one male gamete (c) ovum and male gamete (d) two polar nuclei and two male gametes.
Last Answer : (a) two polar nuclei and one male gamete
Description : Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because (a) female gametophyte is free and gets dispersed like seeds (b) female gametophyte ... by seed coat (d) embryo develops in female gametophyte which is retained on parent sporophyte.
Last Answer : (b) female gametophyte lacks archegonia
Description : The amount of maturity inclusive of interest if becomes Rs 20000/- or above shall be paid by a) Cash only b) By crossed cheque c) By Credit into saving accounts d) Either B or C
Last Answer : d) Either B or C
Description : 1.Meiocyte of paddy plant has 24 chromosomes. The number of chromosomes in the endosperm, nucellus and synergid are respectively ----------------- . (a)24,12,36 b) 24, 24,12 c)36, 12, 24 d) 36, 24, 12 )
Last Answer : (a)24,12,36
Description : If there are 16 chromosomes in the cell of an angiospermic plant, how many chromosomes are there in the perisperm and endosperm cell
Last Answer : Ans: 16 in perisperm as it is diploid and 24 in endosperm as it is triploid
Description : how do you graft a male holly onto a female plant
Last Answer : i have a Mayday tree that had one limb split away from another but has not completly broken off. can i bind it back together and expect it to reconnect to the other branch? thank you Phil in Calgary ,Alberta
Description : In tobacco plant, the male gametes have twenty four chromosomes. What is the number of chromosomes in the female gamete? What is the number of chromosomes in the zygote? -Biology
Last Answer : The number of chromosome in the female gamete would be same as that in the male gamete, i.e., it will have 24 chromosomes. The number of chromosome in the zygote would be double the number present in the gamete and hence, it would be 48.
Description : What is A plant that has both male and female reproductive structures?
Last Answer : What is the answer ?
Description : Consider the following statements: (1) Cucurbits are monoecious plant (2) In mango, neuter, male and female and female flowers occur together (3) Legumenous plants how unisexuality (4) Oblique septa is found in Rosaceae
Last Answer : Ans. ((b))
Description : When male and female flowers occur on the same plant
Last Answer : Ans. Monocius
Description : Hashish is obtained from aplant. From which part of the plant is it obtained? (1) Leaves (2) Stem (3) Exudate from leaves and female inflorescences. (4) Exudate from stem and male inflorescences.
Last Answer : (3) Exudate from leaves and female inflorescences. Explanation: Hashish, often known as "hash", is a cannabis preparation composed of compressed and/or purified preparations of stalked ... strains of cannabis are cultivated specifically for their ability to produce large amounts of trichornes.
Description : When one plant has both male and female flowers separately, is called— (A) Monophrodits (B) Monoecious (C) Hermaphrodite (D) Apomixis
Last Answer : (B) Monoecious
Description : Monoecious plants have male and female sexes/flowers on a. Same plant b. Different plants c. Both of these d. None of these
Last Answer : Same plant
Description : Read the following five statements (A to E) and select the option with all correct statements. A. Mosses and lichens are the first organisms to colonise a bare rock. B. Selaginella is a homosporous pteridophyte. C. Coralloid roots in Cycas ... D and E (b) B, C and E (c) A, C and D (d) B, C and D
Last Answer : (a) A, D and E
Description : Hashish is obtained from a plant. From which part of the plant is it obtained ? (1) Leaves (2) Stem (3) Exudate from leaves and female inflorescences. (4) Exudate from stem and male inflorescences.
Last Answer : Exudate from leaves and female inflorescences.
Description : Which is the diploid phase in life cycle of a plant?
Last Answer : Which is the diploid phase in life cycle of a plant?
Description : You discover a new species of a plant. You also discover that it produces motile sperms and dominant generation has diploid cells. It belongs to (1) Bryophyte (2) Angiosperm (3) Gymnosperm (4) Pteridophyte
Last Answer : 4) Pteridophyte
Description : When Mendel crossed a true-breeding short plant with a true-breeding tall plant, all the offspring were tall. Which term describes the gene for tallness?
Last Answer : Dominant.
Description : In a certain plant yellow leaves are dominant (Y) and red leaves are recessive (y). A plant with genotype Yy and a plant with Yy are crossed.?
Description : If a plant with the genotype PP is crossed with a plant with the genotyp pp what are the possible genotypes of the offspring?
Last Answer : Need answer
Description : For peas, round seed shape (R) is dominant to wrinkled seed shape (r). A homozygous dominant plant is crossed with a heterozygous plant. What are the expected ratios for genotype and phenotype of the offspring?
Last Answer : rr, Rr
Description : What happens when a red flowered plant with incomplete dominance is crossed with a pink flowered plant which is the offspring of the crossing of a white flowered plant and a red flowered plant which has incomplete dominance?
Last Answer : The crossing of a red flowered plant and a white flowered plant produces all the offspring with pink flowers. This cross illustrates red and white exhibit incomplete dominance. ... ... the heterozygous offspring will be phenotypically and genotypically different from either of the homozygous parent.
Description : If a dwarf pea plant was treated with gibberellic acid, it became as tall, as tall pea plants. If these pea plants are crossed with pure tall pea plants, what will be the phenotypic ratio in F1 generation? ... (b) 50% tall and 50% dwarf plants (c) 75% tall and 25% dwarf plants (d) 100% tall plants
Last Answer : Ans. ((d))
Description : When white -flowered plant were crossed with pure red - flowered plants, the progeny were - (a) White flowered (b) Red flowered (c) Exhibiting 3:1 ratio of red to whiteflowered plants (d) Exhibiting 1:1 ratio of red to whiteflowered plants
Last Answer : Ans:(b)
Description : In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt, (a) 25% will be ... with red fruit (c) 75% will be tall with red fruit (d) all the offspring will be tall with red fruit
Last Answer : (b) 50% will be tall with red fruit
Description : In order to find out the different types of gametes produced by a pea plant having the genotype AaBb it should be crossed to a plant with the genotype (a) AABB (b) AaBb (c) aabb (d) aaBB.
Last Answer : (c) aabb
Description : In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F1 generation? (a) 9 : 1 (b) 1 : 3 (c) 3 : 1 (d) 50 : 50
Last Answer : (d) 50 : 50
Description : If a pea plant that is heterozygous for round, yellow peas (RrYy) is crossed with a pea plant that is homozygous for round peas but heterozygous for yellow peas (RRYy), how many different phenotypes are their offspring expected to show? a. 2 b. 4 c. 8 d. 16
Last Answer : a. 2
Description : In the P generation, a tall plant is crossed with a short plant. The probability that an F2 plant will be tall is a. 50%. b. 75%. c. 25%. d. 100%.
Last Answer : b. 75%.
Description : A tall plant is crossed with a short plant. If the tall F1 pea plants are allowed to self-pollinate, a. the offspring will be of medium height. b. all of the offspring will be tall. c. all of the offspring will be short. d. some of the offspring will be tall, and some will be short.
Last Answer : d. some of the offspring will be tall, and some will be short.
Description : When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited a. an allele for tallness from each parent. b. an allele for tallness from the tall parent and an allele for shortness ... parent. c. an allele for shortness from each parent. d. an allele from only the tall parent.
Last Answer : b. an allele for tallness from the tall parent and an allele for shortness from the short parent.
Description : Explain endosperm development in angiosperms. -Biology
Description : Name the hormone present in liquid endosperm of coconut? -Biology