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    1. Cell Biology
    2. Plant Biology

    Microscopy: Looking below the surface in plants

    Rui Wang, Anna A Dobritsa
    A new way to culture and image flowers is uncovering the processes that take place in reproductive cells buried deep in plants.
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    1. Epidemiology and Global Health

    Mortality: The challenges of estimating biological age

    Alexey Moskalev
    A comparison of nine different approaches over a period of 20 years reveals the most promising indicators for biological age.
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    1. Neuroscience

    Physical Inference: How the brain represents mass

    Grant Fairchild, Jacqueline C Snow
    New fMRI experiments and machine learning are helping to identify how the mass of objects is processed in the brain.
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    1. Developmental Biology
    2. Plant Biology

    Plant Reproduction: Shaping the genome of plants

    Ajeet Chaudhary, Rachele Tofanelli, Kay Schneitz
    Fertilization of an egg cell by more than one sperm cell can produce viable progeny in a flowering plant.
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    1. Developmental Biology

    Heart Development and Regeneration: Metabolism makes and mends the heart

    Megan L Martik
    Experiments in zebrafish have shed new light on the relationship between development and regeneration in the heart.
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    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Epigenetics: A memory of longevity

    Felicity Emerson, Cheng-Lin Li, Siu Sylvia Lee
    Worms with increased levels of the epigenetic mark H3K9me2 have a longer lifespan that can be passed down to future generations.
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    1. Microbiology and Infectious Disease

    Two-component Signaling Pathways: A bacterial Goldilocks mechanism

    Irene M Kim, Hendrik Szurmant
    Bacillus subtilis can measure the activity of the enzymes that remodel the cell wall to ensure that the levels of activity are ‘just right’.
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    1. Developmental Biology
    2. Neuroscience

    Cortical Development: Do progenitors play dice?

    Esther Klingler, Denis Jabaudon
    The wide range of cell types produced by single progenitors in the neocortex of mice may result from stochastic rather than deterministic processes.
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    1. Microbiology and Infectious Disease

    Transcriptomics: Revisiting the genomes of herpesviruses

    Bhupesh K Prusty, Adam W Whisnant
    Combining integrative genomics and systems biology approaches has revealed new and conserved features in the genome of human herpesvirus 6.
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    1. Neuroscience

    Associative Learning: How nitric oxide helps update memories

    Daniel JE Green, Andrew C Lin
    Some dopaminergic neurons release both dopamine and nitric oxide to increase the flexibility of olfactory memories.
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