Seminal plasma in human males is rich in
fructose and calcium
glucose and calcium
DNA and testosterone
DNA and testosterone
A.
fructose and calcium
Seminal plasma is the fluid in which sperms are bathed. It contains secretions from seminal vesicle and prostate gland. Seminal fluid contains fructose, citrate, inositol, prostaglandins and several proteins. Prostate secretes a thin, milky fluid that contains calcium, cittrate ion, phosphate ion, a clotting enzyme and a profibrinolysin.
Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called
xenogamy
geitonogamy
karyogamy
karyogamy
The genotype of plant showing the dominant phenotype can be determined by
test cross
dihybrid cross
pedigree analysis
pedigree analysis
Select the correct statement from the ones given below
Barbiturates, when given to criminals, make them tell the truth
Morphine is often given to person who has undergone surgery as a pain killer
Chewing tobacco lowers blood pressure and heart rate
Chewing tobacco lowers blood pressure and heart rate
Vasa efferentia are the ductules leading from
testicular lobules to rete testis
rete testis to vas deferens
vas deferens to epididymis
vas deferens to epididymis
Study the four statements (1-4) given below and select the two correct one out of them.
1. A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers
2.Predator starfish pisaster helps in maintaining species diversity of some invertebrates
3.Predators ultimately lead to the extinction of prey species
4.Production of chemicals such as nicotine, strychnine by the plants are metabolic disorders
The two correct statements are
(2) and (3)
(3) and (4)
(1) and (4)
(1) and (4)
Apomictic embryos in Citrus arise from
Synergids
maternal sporophytic tissue in ovule
antipodal
antipodal
Select the correct statement from the following
Bio-gas is produced by the activity of aerobic bacteria on animal waste
Methanobacterium is an aerobic bacterium found in rumen of cattle
Biogas, commonly called gobar gas, is pure methane
Biogas, commonly called gobar gas, is pure methane