Referring Clues

• Gametes
• Fertility clinic needs
• Lab eggs
• Fertilization sites
• Eggs
• In vitro items
• They're fertilized
• Reproductive cells
• Egg cells
• Macrogametes
• Female gametes
• Some ducts carry them
• Reproduction needs
• They pass through tubes
• Sites of many divisions
• Seeds
• Spawn
• Fertility clinic stock
• Contents of some sacs
• They can be fertilized
• Oologists' studies
• What some surrogates get
• Caesar's salad ingredients?
• Cells for women only
• Reproduction necessities
• Some germ cells
• Fertility matters
• Plant gametes
• Women's cells
• Fertility clinic collection
• Lab cells
• Reproductive needs
• Eggs, biologically
• Necessities for pregnancies
• Some cells
• Eggs, in bio labs
• They're fertile
• Eggs, to biologists
• Certain cells
• Things laid by a gallina
• Oocytes, eventually
• Future aves?
• Fraternal twins come from two different ones
• Fertilization targets
• They grow when fertilized
• Large cells
• Largest cells in the human body
• Eggs, in labs
• Donations at some clinics
• Results of oogenesis
• Fertility clinic supply
• Things in tubes
• Fertilized things
• Eggs in labs
• Uniters with 51-Down
• Some modern donations
• Eggs in a lab
• They travel through tubes
• Items in Caesar's omelet?
• Eggs benedictus?
• Ingredients in Caesar's salad?
• Breakfast of centurions?
• Breakfast for Brutus?
• Female cells
• Some gametes
• Eggs, to a biologist
• Eggs, to Caesar
• Eggs, scientifically
• How the Kennedys have always liked their eggs?
• Breakfast of gladiators?
• They go down the tubes
• Eggs of science
• Aves lay them
• Eggs, to a scientist
• Sex cells?
• Certain gametes
• Romans' roe
• Round gametes
• Part of Caesar's breakfast?
• Eggs in old Rome
• Breakfast for Brutus
• Fertility lab eggs
• Sperm targets
• In vitro cells
• Eggs, to Agrippa
• They travel through fallopian tubes
• "Virent ___! Viret Perna!!" (Latin version of "Green Eggs and Ham")
• Dizygosity twosome
• Some progametes, eventually
• Fallopian tube traversers
• Biochemists study them
• Fertilizable cells
• Fertility clinic cells
• Topic of reproductive technology
• Large gametes
• Haploid cells
• Fallopian tube travelers
• 56-Down, biologically
• Things that go through tubes
• Oft-donated cells
• Caesar's eggs
• Breakfast for Caesar?
• Fertility clinic inventory
• Roman roe
• Roe
• Eggs: Lat.
• Anatomical eggs
• Biologist's eggs
• Biological eggs
• Chromosome carriers
• Avis output
• Eggs, in a lab
• Potential progeny
• Future embryos
• Ovoid objects, to Romans
• Cato's eggs
• Eggs, in old Rome
• What aves produce
• Eggs fit for Caesar
• Omelette ingredients for Julius
• Romans' caviar
• Offspring in the offing
• In vitro items, perhaps
• Fish spawn
• Cato's omelet material
• Unhatched aves
• They're fertilized in biology
• Fertility lab stock
• Caesar's morning meal?
• Roman's roe
• Eggs, in biology
• What aves lay
• Breakfast for Brutus, perhaps
• Eggs, to Augustus
• Fertility clinic specimens
• Fertility clinic samples
• Mature female germ cells
• Fertility clinic donations
• Twins, once
• Eggs, in biology labs
• Certain fertility clinic specimens
• Starts of some reproductions
• Eggs, in biology class
• They travel down fallopian tubes
• Ooplasm containers
• Future fish
• Caviar
• Roe, to Romans
• Eventual "aves"
• "Avis" output
• How Bostonians like their eggs?
• Potential embryos
• Contents of some ducts
• Russian name ending
• 33 Across group, long ago
• Gametogenesis results, sometimes
• Cells contributing to the need for a Lamaze class
• Breakfast item in old Rome?
• Future fauna, frequently
• Caviar actually
• They're laid by aves
• They may be fertilized in vitro
• Eggs for Lucullus
• Eventual aves
• Fertility clinic topic
• Fertility-clinic topic
• Eggs, to Nero
• 47-Across, e.g.
• Future aves
• Roe, e.g.
• Caviar, essentially
• 57-Across, to Brutus
• Eggs, zoologically
• 39-Across, to Caesar
• Eggs (Latin)
• Eggs, formally
• Embryo sources
• Beginnings of embryos
• IVF stock
• Some tubes carry them
• Czech surname suffix
• Fish-to-be
• Biological duct travelers
• Fertilized cells
• Egg cells (which are broken 3 times in this puzzle)
• Tiny tube travelers
• Tube travelers?
• Largest human cells
• Oospheres, say
• Plural of 26-Across
• Latin 47-Down
• Genetic lab eggs
• Eggs in a clinic
• Eggs, to Ovid
• Two of these are needed to produce fraternal twins
• Unhatched aves?
• Caviar, always
• Eggs in fertility clinics
• Beginnings of life
• Future embryos, perhaps
• Maturation formations
• Reproductive gametes
• Sex-ed topic
• Eggs, to eggheads
• An avis lays them
• Eggs, in a biology lab
• Halves of zygotes
• Lab subjects
• Donated eggs?
• Eggs, fancily
• Fertility lab supply
• Caesar's breakfast order, perhaps
• Some duct contents
• Eggs, to Livy
• Eggs, in 2-Down
• Important union members?
• Donations for life?
• Eggs in bio labs
• Nero's breakfast, perhaps
• In vitro needs
• Egg cell
• Eggs of old Rome
• Lots of 15-Across
• Fertility clinic eggs
• Womb occupants-to-be
• Roman eggs
• Breakfast food for Cato
• Eggs, to some
• Eggs, formerly
• Breakfast items for Nero
• Ovid's eggs
• Eggs for Caesar
• A dozen eggs, in a lab
• Eggs in a biology lab
• Breakfast for Nero?
• Eggs for Caesar's salad
• Latin eggs
• Latin for "eggs"
• 42-Down, to biologists
• The origin of species?
• Scientist's eggs
• Future chicks, to a nerd
• Genetic lab supplies
• Things zygotes come from
• Nero's eggs
• Eggs in clinics
• Egg of old Rome
• Egg
• Livy's egg
• Eggs in a science lab
• Some cells for women
• Seeds in a lab
• Seeds, scientifically
• Ingredients in a Caesar salad, to Caesar?
• Eggs, in ancient Rome
• Female gamete
• Cells for new generations
• They're fertilized, in biology
• What avis lay
• Scientific eggs
• Eggs in a fertility clinic
• Fertility lab needs
• Vital things in fertility labs
• Reproductive cell
• Genetic lab materials
• Spermatozoa targets
• Follicles have them
• Fancy eggs
• Avis laying?
• Caesar's breakfast
• Future chicks
• Brutus's breakfast?
• Cato's breakfast
• Eggs, in Latin
• Eggs, to Cato
• Sperms' targets
• Brutus's breakfast choice?
• "Avis" eggs
• Lots of 13-Across
• Eggs, in the lab
• Eggs officio?
• Eggs in science class
• Egg, to Brutus
• Zoologist's eggs
• Biological versions of 10-Down
• Some egg cells
• Eggs in a laboratory
• Eggs with mammals in them
• Eggs for an old Roman senator
• Eggs, in science
• Female reproduct­ive cells
• Talking about the subject of eggs
• See 16
• Eggs, but not quite oval
• Eggs are done, you say?
• A five-nil reverse that may be scrambled
• The eggs are soundly done
• A number returning with duck eggs
• Cato's caviar
• More than one 20 Across
• Some reproductive cells
• Oogenesis subjects
• Female gametes found in cardiovascular irregularity
• Female gametes(3)
• Ingredients for Roman omelette?
• Breakfast of gladiators?
• Eggs in fertility labs
• Avis products
• Future birds
• What avis make
• Cells with ooplasm
• Cholesterol hotbeds
• Future embryos, in a lab
• Zygote precursors
• Eggs, fancy
• Avis production
• Some donations
• Breakfast for Brutus?
• Lucullus' eggs
• Inventory at a fertility clinic
• Embryos, earlier
• Part of a 31-Down omelet?
• Ones going down the tubes?
• Donations to certain clinics
• Avis output?
• Food for upper-class ancient Romans
• They form by oogenesis
• 25-Across, scientifically
• Eggs, in science labs
• "Origines avium"
• Eggs that may be frozen
• Cato's breakfast?
• 28-Across doubled and fancy
• Eggs in two varieties
• Avis' laying?
• Monthly travelers?
• Eggs, fancified
• Caesar's breakfast?
• In vitro fertility needs
• Tube travelers?
• Egg, scientifically
• Egg, in old Rome
• Eggs, centuries ago
• Fallopian tube cells
• Egg, fancy
• In vitro supply
• Breakfast for an old Roman?
• Eggs for fertilization
• Cells joined by other cells
• Egg, where one is I
• Eggs in a petri dish
• Eggs Florentine, once?
• Eggs are declared done
• The eggs of old Rome
• Roman egg of old
• Brutus's breakfast?
• In vitro fertilization needs
• Parts of zygotes
• 7-Across, to Brutus
• Potential starts of new generations
• Monthly releases of a sort
• IVF cells
• Future zygotes
• Large reproductive cells
• Fertility lab cells
• Ingredients in Caesar's salads?
• Eggs in a fancy way
• Things sometimes frozen
• Some women's donations
• Eggs in a fertility lab
• Latin roe
• Human eggs
• Fertility clinic collections
• Eggs that can be frozen
• Eggs, at a clinic
• Eggs of old Rome or science labs
• Donations for life?
• Some cryobank deposits
• Some sex cells
• Laboratory eggs
• Next-generation releases?
• Egg cells, formally
• Eggs in Caesar's salad?
• They grow when fertilized, fancy
• They grow when fertilized in a lab
• Unhatched aves?
• Some bank deposits
• Sex education subject
• Eggs, in a scientific way
• Eggs in a fancy lab
• Eggs the old Roman way
• Products of oogenesis
• Supply at an I.V.F. clinic
• Fertility doctor's focus
• Eggs at an I.V.F. clinic
• Egg donor's donations
• Oogenesis products
• Eggs, to Cicero
• Needs for in vitro fertilization
• Fertilized ones become embryos
• Cells that can be vitrified and preserved for future use
• Very small eggs
• Some small donations
• Eggs are not quite oval