recessive allele
gene variant whose trait effect is masked by a dominant variant
n.L3 延伸C1
隱性等位基因
英文釋義 a gene variant whose effect on a particular trait is masked when it is paired with a dominant variant
托福詞彙
2,876 個單字與片語 · 21 個主題
詞彙（105）
leaf canopy
n. · C1 · L2upper covering formed by a plant community's leaves
樹冠葉層；樹葉形成的上層覆蓋
life cycle
n. · B1 · L1successive stages in an organism's development and reproduction
生命週期；生活史
mammal
n. · B1 · L1animal of the class whose females produce milk
哺乳類動物
mate
v. · B2 · L2join with another animal for sexual reproduction
交配
metamorphosis
n. · C1 · L3transformation from an immature form into a different adult form
變態發育
microorganism
n. · B2 · L2organism too small to see without magnification
微生物
migrate
v. · B1 · L1move regularly between habitats or regions
遷徙
migration
n. · B2 · L1regular seasonal movement between habitats
動物遷徙
multicellular
adj. · C1 · L2made up of many cells
多細胞的
mutation
n. · B2 · L2change in an organism's DNA sequence
突變；DNA 序列變化
native species
n. · B2 · L1species occurring naturally in a particular area
原生種；原生物種
natural selection
n. · B2 · L2spread of advantageous inherited traits
天擇；自然選擇
nectar
n. · B2 · L2sweet plant secretion that attracts feeding animals
花蜜；植物分泌的甜液
nocturnal
adj. · B2 · L2active mainly during the night
夜行性的；主要在夜間活動的
nucleus
n. · C1 · L2cell structure containing most genetic material
細胞核
nutrient cycle
n. · B2 · L2circulation of nutrients through organisms and their surroundings
養分循環；營養物質循環
offspring
n. · B2 · L1young produced by an organism
後代；幼體
omnivore
n. · B2 · L2animal that eats both plant and animal food
雜食性動物
organism
n. · B1 · L1individual living thing
生物；有機體
parasite
n. · B2 · L2organism that obtains resources from and harms a host
寄生生物；寄生蟲
photosynthesis
n. · B2 · L2use of light energy to produce sugars
光合作用
pollen
n. · B2 · L1fine grains involved in seed-plant reproduction
花粉
pollinate
v. · B2 · L2transfer pollen so a flower can be fertilized
為……授粉；傳粉
pollination
n. · B2 · L2transfer of pollen enabling fertilization
授粉；傳粉
population density
n. · B2 · L1number of organisms within a unit of space
族群密度；人口密度
predator
n. · B2 · L1animal that captures other animals for food
掠食者；捕食性動物
prey
n. · B2 · L1animal or animals hunted and eaten by a predator
獵物；被捕食的動物
recessive allele
n. · C1 · L3gene variant whose trait effect is masked by a dominant variant
隱性等位基因
release nutrients
v. · B2 · L2free nutrients for use by other organisms
釋放養分
reproduce
v. · B2 · L1produce new individuals of the same kind
（生物）繁殖；產生後代