Gamete Collection

Geranium anther, SEM
Geranium anther. Coloured scanning electron micrograph (SEM) of pollen (pink) on the anther of a geranium flower (Geranium sp.)

Dahlia flower pollen, SEM
Dahlia flower pollen. Coloured scanning electron micrograph (SEM) of a pollen grain (orange) from a Dahlia cultorum flower. A pollen grain contains a male sex cell from a flowering plant

Passion flower pollen, SEM
Passion flower pollen. Coloured scanning electron micrograph (SEM) of a passion flower (Passiflora caerulea) pollen grain. Pollen grains are the male gametes (sex cells) of a plant

Honeybee leg, SEM
Honey bee leg. Coloured scanning electron micrograph (SEM) of the leg of a honeybee (Apis mellifera) covered in pollen grains (round). The dense coating of hairs has trapped the pollen

Geranium pollen, SEM
Geranium pollen. Coloured scanning electron micrograph (SEM) of pollen (pink) on the stamen of a geranium flower (Geranium sp.)

IUD contraceptive and sperm cells. Computer artwork of an intrauterine device (IUD, red and white, centre) in a womans uterus, surrounded by sperm cells (white, not to scale)

Embryo development 24-36 hours after fertilization

Dandelion pollen grain, SEM
Dandelion (Taraxacum officinale) pollen grain, coloured scanning electron micrograph (SEM). Pollen grains are reproductive structures produced by the male parts of flowering plants

Pollen on a bee leg, SEM
Pollen on a bee leg. Coloured scanning electron micrograph (SEM) of pollen grains (pale purple) on the leg of a bee (superfamily Apoidea). Pollen grains are the male sex cells of a flowering plant

Philadelphia fleabane pollen grains, SEM
Philadelphia fleabane (Erigeron philadelphicus) pollen grains, coloured scanning electron micrograph (SEM). Pollen grains are reproductive structures produced by the male parts of flowering plants

Gorse stigma with pollen grains, SEM
Gorse (Ulex europaeus) stigma (green) with pollen grains (yellow), coloured scanning electron micrograph (SEM). Pollen grains are reproductive structures produced by the male parts of flowering

Lily pollen grain on rosemary leaf, SEM
Lily pollen grain on rosemary leaf. Coloured scanning electron micrograph (SEM) of a pollen grain (yellow) from a lily flower (Lilium sp.)

Forsythia pollen grains, SEM
Forsythia pollen grains arranged in a spiral, coloured scanning electron micrograph (SEM). Pollen grains are reproductive structures produced by the male parts of flowering plants

Chickweed pollen grains, SEM
Chickweed pollen grains. Coloured scanning electron micrograph (SEM) of pollen grains (green) from a chickweed flower (Stellaria media)

Flame lily pollen, SEM
Flame lily (Gloriosa sp.) pollen grains, coloured scanning electron micrograph (SEM). The grains have a highly sculptured outer wall (exine)

Hellebore pollen, SEM
Hellebore (Helleborus sp.) pollen grains, coloured scanning electron micrograph (SEM). Magnification: x2000 when printed at 10 centimetres wide

Germinating lily pollen, SEM
Germinating lily pollen. Coloured scanning electron micrograph (SEM) of lily (Lilium sp.) pollen grains that have sprouted pollen tubes. Pollen contains the male sex cells of a plant

Pollination, SEM
Pollination. Coloured scanning electron micrograph (SEM) of part of a flowers pistil with pollen grains attached. The pistil is the female reproductive part of a flower

Marrow and forget-me-not pollen, SEM
Pollen grains. Coloured scanning electron micrograph (SEM) of a pollen grain from a marrow plant (Cucurbita sp. left) and a forget-me-not plant (Myosotis sp. lower right)

Hollyhock pollen grain, SEM
Hollyhock pollen grain. Coloured scanning electron micrograph (SEM) of a pollen grain from a hibiscus (Alcea setosa) flower. Pollen grains are the male sex cells of a flowering plant

Verbena pollen, SEM
Verbena pollen. Coloured scanning electron micrograph (SEM) of pollen grains from verbena bonariensis. Verbena bonariensis is a tall, slender-stemmed perennial

Convolvulus pollen grains, SEM
Convolvulus pollen grains. Coloured scanning electron micrograph (SEM) of pollen grains from a convolvulus flower. Convolvulus is a genus of about 200 to 250 species of flowering plants in

Water lily pollen grains, SEM
Water lily pollen grains. Coloured scanning electron micrograph (SEM) of pollen grains from a water lily flower. Nymphaeaceae is a family of flowering plants, commonly called water lilies

Deformed sperm cell, SEM
Deformed sperm cell. Coloured scanning electron micrograph (SEM) of double-tailed sperm cell, or spermatozoon. A sperm cells motility may be seriously affected by having multiple heavy tails

Human sperm cells
Sperm. Computer artwork of human sperm (spermatozoa), the sex cells of the male. Each sperm is about 0.065 millimetres in length

Human genetic engineering. Conceptual computer artwork representing the genetic engineering of humans. Sperm cells labelled with bar codes are seen

Chickweed pollen grain, SEM
Chickweed pollen grain. Coloured scanning electron micrograph (SEM) of a pollen grain (green) from a chickweed flower (Stellaria media)

Marigold pollen grain, SEM
Marigold pollen grain. Coloured scanning electron micrograph (SEM) of a pollen grain from a marigold plant (family Compositae)

Microscopic view of ovules

Zygote development 24-36 hours after fertilization

Conceptual image of mitosis. Mitosis is the process in the cell cycle by which a cell duplicates into two genetically identical sets of chromosomes

Microscopic view of cell division

Carnation flower pistil, SEM C016 / 9762
Carnation (Dianthus sp.) pistil, coloured scanning electron micrograph (SEM). Pistils hold a plants female reproductive structures

Carnation flower pistil, SEM C016 / 9759
Carnation (Dianthus sp.) pistil, coloured scanning electron micrograph (SEM). Pistils hold a plants female reproductive structures

Carnation flower pistil, SEM C016 / 9760
Carnation (Dianthus sp.) pistil, coloured scanning electron micrograph (SEM). Pistils hold a plants female reproductive structures

Sperm, SEM
Sperm. Coloured scanning electron micrograph (SEM) of human sperm (spermatozoa), the sex cells of the male. Sperm are about 0.065 millimetres in length

Basil pollen grain, SEM
Basil pollen grain. Coloured scanning electron micrograph (SEM) of a pollen grain from the flower of a basil (Ocimum basilicum) plant. Pollen grains are the male gametes (sex cells) of a plant

Hibiscus flower pistil, SEM C016 / 9758
Hibiscus flower pistil. Coloured scanning electron micrograph (SEM) of a Hibiscus sp. flower pistil. Pistils hold a plants female reproductive structures

Fungal spores on pollen grain, SEM
Fungal spores on pollen grain. Coloured scanning electron micrograph (SEM) showing fungal spores (round) on a pollen grain from a goji berry (wolfberry, Lycium sp.) plant

Carnation flower pistil, SEM C016 / 9763
Carnation (Dianthus sp.) pistil, coloured scanning electron micrograph (SEM). Pistils hold a plants female reproductive structures

Hibiscus flower pistil, SEM C016 / 9757
Hibiscus flower pistil. Coloured scanning electron micrograph (SEM) of a Hibiscus sp. flower pistil. Pistils hold a plants female reproductive structures

Carnation flower pistil, SEM C016 / 9761
Carnation (Dianthus sp.) pistil, coloured scanning electron micrograph (SEM). Pistils hold a plants female reproductive structures

Fertilisation, artwork C016 / 7516
Fertilisation. Cutaway computer artwork of a sperm cell (spermatozoa) penetrating an egg (large). The nucleus of the sperm cell will fuse with the egg and its DNA (deoxyribonucleic acid)

Ovulation, artwork C016 / 7537
Ovulation, computer artwork

Cowslip pollen grain, SEM C016 / 9031
Cowslip pollen grain. Coloured scanning electron micrograph (SEM) of pollen grain from a common cowslip (Primula veris) flower. Pollen grains are the male sex cells of a flowering plant

Cowslip pollen grain, SEM C016 / 9030
Cowslip pollen grain. Coloured scanning electron micrograph (SEM) of pollen grain from a common cowslip (Primula veris) flower. Pollen grains are the male sex cells of a flowering plant

Dwarf checkermallow pollen grain, SEM C016 / 9438
Dwarf checkermallow pollen grain. Coloured scanning electron micrograph (SEM) of a pollen grain from a dwarf checkermallow (Sidalcea malviflora) flower

Fertilisation, artwork C016 / 7515
Fertilisation. Computer artwork of a sperm cell (spermatozoa) penetrating an egg (large)

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"Unveiling the Intricate World of Gametes: A Closer Look through SEM" Delving into the Microcosm: Exploring Geranium Anther under SEM Captivating Beauty in Detail: Dahlia Flower Pollen Revealed by SEM Passion Unleashed: Witnessing the Exquisite Passion Flower Pollen via SEM Honeybee's Secret Treasure: Discovering Pollen on its Leg with SEM The Marvels of Reproduction: Geranium Pollen Magnified under SEM Life Begins to Flourish: Embryo Development 24-36 Hours after Fertilization, a Mesmerizing Journey Contraception and Sperm Cells Collide: IUD as a Barrier against Fertilization Explored Nature's Tiny Warriors Unveiled: Dandelion Pollen Grain Examined through SEM Hitchhiking on Bees' Journeys: Tracing Pollen Grains on Bee Legs with SEM Philadelphia Fleabane's Hidden Gems Revealed by SEM - Stunningly Beautiful Pollen Grains Up Close Gorse Stigma Embraces Life's Essence - Glimpsing at Its Adorned Surface with Polished Pollens Underneath, Captured by anSEM Lens A Serendipitous Encounter - Lily pollen grain finds solace upon Rosemary leaf.