分裂果

The frequency of cells with univalent at MI and with lagging chromosomes and chromosomal bridge at A I in PMC of F1 hybrids of 4 alloplasmic 1BL:/1RS and non-1BL/1RS wheat male sterile lines with Aegilops kotschyi,Ae. variabilis,Ae.ventricosa and Ae.bicornis cytoplasms were systematically investigated,and the relationship between FCU at M I,FCLB at A I and F1 selfed seed set was analyzed.

系统调查了4类异质(粘果、易变、偏凸、二角山羊草细胞质)1BL/lRS、非1BL/1RS小麦雄性不育系与其恢复系杂种F减数分裂中期Ⅰ出现单价体细胞频率，以及后期Ⅰ出现落后染色体和染色体桥细胞频率，并对中、后期染色体变异率与杂种F自交结实率进行了相关分析。

Segregation Distorter is a meiotic drive system of natural occurrence. Heterozygous SD／SD＋ males transmit the SD chromosome in vast excess over the normal homolog.

黑腹果蝇中的分离变相因子［Segregation Distorter］是一种非常典型的具有减数分裂驱动性质的特殊遗传因子。

She Zhuanghua showed several rounds of petals obovate, white, green, yellow, pink, red, orange and other colors, Guan Zhuanghua concentrated in the central yellow chrysanthemum orange, marginal division, achene widely oval to the bottle-shaped, tube-shaped flowers bear achenes oval-shaped, flat small, flowering from June to September, fruit mature period from August to October.

舌状花多轮花瓣呈倒卵形，有白、绿、黄、粉、红、橙等色，管状花集中在花盘中央黄橙色，边缘分裂，瘦果广卵形至瓶形，筒状花结出瘦果椭圆形、扁小，花期6-9月，果熟期8-10月。

Capsules globose to subglobose, opening by apical loculicidal slits, 2-horned, horns terminated by a style which may be split or remain partly connate, many-seeded.

蒴果球状到近球形，开阔的以顶端裂缝，2有角，角状突起结束以可能是分裂或部分保持哪个的花柱，种子多数。

The purpose of this laboratory is to train undergraduate students with practical genetics, including the basic principles of genetics, inheritance of pea traits, root tip chromosomes, Drosophila salivary polytene chromosomes, meiosis, statistical methods, bacterial antibiotic resistance, plasmid isolation, restriction, and gel electrophoresis, blood type, and human genetics.

遗传学实习 1 必陈福旗，戴国兴本课程之目的，在使学生透过实际操作与试验，了解遗传学之原理，实验内容包括：碗豆七个性状遗传，植物根尖染色体观察，果蝇唾腺染色体，减数分裂，统计方法，细菌抗药性，质体之抽取及限制酵素切割及电泳分离，血型，人类遗传。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。