Answer:
The correct answer would be option D.
Explanation:
Pollen of a plant is a gamete, that contains half of the alleles are required to produce the plant. Pollen fuse with stigma and complete the required alleles or genetic information.
Possible combinations in pollen would be one allele from each trait in every form either dominant or recessive. So ST, St, sT, st. would be the correct possible genetic combination present in a single grain.
Thus, the correct answer is option D.
Answer:
2 daughter cells with 12 chromosomes each
Answer:
The correct answer is plants have two parts life cycle spending one part of their life in diploid phase and the other part in the haploid phase,human spending their lives in diploid phase and produces gamets that are haploid.
Explanation:
There are two stages in the life cycle of plant one is gametophyte stage which is haploid and the other is sporophyte stage that is diploid.
but in case of humans the overall life cycle proceed in diploid phase and produces gamets that are haploid.
In case of human male produces haploid gamet known as sperm and the female produces haploid gamet know as ovum. The sperm and ovum fuses to form diploid zygote,
Answer:
temperature and precipitation
Factories, cars and cigoretes.
All of these things are polluting the air cuasing it to heat up more which is cuasing global warming
