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Зображення

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EN_01314036_0129

DNA (deoxyribonucleic acid) sequence, conceptual illustration.

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EN_01314036_0130

DNA (deoxyribonucleic acid) sequence, conceptual illustration.

EN_01314036_0131
EN_01314036_0131

DNA (deoxyribonucleic acid) sequencing, illustration.

EN_01314036_0132
EN_01314036_0132

DNA (deoxyribonucleic acid) sequencing with water droplets, illustration.

EN_01314036_0133
EN_01314036_0133

DNA (deoxyribonucleic acid) sequencing and magnifying glass, illustration.

EN_01314036_0134
EN_01314036_0134

DNA (deoxyribonucleic acid) sequencing and magnifying glass, illustration.

EN_01314036_0135
EN_01314036_0135

DNA (deoxyribonucleic acid) sequencing and DNA strand, illustration.

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EN_01314036_0136

DNA (deoxyribonucleic acid) structure, illustration.

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EN_01314036_0137

DNA (deoxyribonucleic acid) structure, illustration.

EN_01314036_0138
EN_01314036_0138

DNA (deoxyribonucleic acid) structure, illustration.

EN_01314036_0139
EN_01314036_0139

DNA (deoxyribonucleic acid) structure, illustration.

EN_01314036_0140
EN_01314036_0140

DNA (deoxyribonucleic acid) structure, illustration.

EN_01314036_0141
EN_01314036_0141

DNA (deoxyribonucleic acid) structure, illustration.

EN_01314036_0142
EN_01314036_0142

DNA (deoxyribonucleic acid) structure, illustration.

EN_01314036_0143
EN_01314036_0143

DNA (deoxyribonucleic acid) structure, illustration.

EN_01314036_0144
EN_01314036_0144

DNA (deoxyribonucleic acid) structure, illustration.

EN_01314036_0246
EN_01314036_0246

Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering.

EN_01314036_0247
EN_01314036_0247

Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering.

EN_01314036_0248
EN_01314036_0248

Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering.

EN_01314036_0249
EN_01314036_0249

Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering.

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