Biology Quiz 26 - How well do you understand health?
Understand its definition and learn more about the different dimensions of health.
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Understand its definition and learn more about the different dimensions of health.
Question: How do we conserve biodiversity?
Answer: Primarily two approaches are followed i.e.
1. In Situ conservation
2. Ex Situ conservation
The period from birth to the natural death of an organism represents its life span. The lifespan of an organism is not necessarily correlated with its body size, it can vary from less than one day to more than 400 years. Irrespective of the long or short lifespan of an organism, death is a certain phenomenon, i.e. no individual is immortal, except for single-celled organisms like Amoeba.
Q1(NCERT). Fill in the blanks.
(a) Humans reproduce _____________________. (asexually/sexually)
(b) Humans are _____________________. (oviparous, viviparous, ovoviviparous)
(c) Fertilisation is _____________________ in humans. (external/internal)
(d) Male and female gametes are _____________________. (diploid/haploid)
(e) Zygote is _____________________. (diploid/haploid)
(f) The process of release of ovum from a mature follicle is called _____________________.
(g) Ovulation is induced by a hormone called _____________________.
(h) The fusion of male and female gametes is called _____________________.
(i) Fertilisation takes place in _____________________.
(j) Zygote divides to form _____________________ which is implanted in the uterus.
(k) The structure which provides a vascular connection between the foetus and uterus is called _______.
Q1(AIPMT 2010). Breeding of crops with high levels of minerals, vitamins and proteins is called
(a) Somatic hybridization
(b) Biofortification
(c) Biomagnification
(d) Micropropagation
Q1. When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed as
(a) microevolution
(b) co-evolution
(c) convergent evolution
(d) divergent evolution
Q1(NEET 2017). The final proof for DNA as the genetic material came from the experiments of
(a) Griffith
(b) Hershey and Chase
(c) Avery, MacLeod and McCarty
(d) Har Gobind Khorana
Q1. In Mendel’s experiments with the garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), and yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY × rryy?
(a) Round seeds with yellow cotyledons, and wrinkled seeds with yellow cotyledons.
(b) Only round seeds with green cotyledons.
(c) Only wrinkled seeds with yellow cotyledons.
(d) Only wrinkled seeds with green cotyledons.
Q1. From the sexually transmitted diseases mentioned below, identify the one which does not specifically affect the sex organs–
(a) Syphilis
(b) AIDS
(c) Gonorrhea
(d) Genital warts
Q1. Seminal plasma in humans is rich in
(a) fructose and calcium
(b) glucose and calcium
(c) Progesterone and testosterone
(d) potassium and calcium
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