(a) Repetitive DNA and satellite DNA
Repetitive DNA |
Satellite DNA |
|
1. |
Repetitive DNA are DNA sequences that contain small segments, which are repeated many times. |
Satellite DNA are DNA sequences that contain highly repetitive DNA. |
(b) mRNA and tRNA
mRNA |
tRNA |
|
1. |
mRNA or messenger RNA acts as a template for the process of transcription. |
tRNA or transfer RNA acts as an adaptor molecule that carries a specific amino acid to mRNA for the synthesis of polypeptide. |
2. |
It is a linear molecule. |
It has clover leaf shape. |
(c) Template strand and coding strand
Template strand |
Coding strand |
|
1. |
Template strand of DNA acts as a template for the synthesis of mRNA during transcription. |
Coding strand is a sequence of DNA that has the same base sequence as that of mRNA (except thymine that is replaced by uracil in DNA). |
2. |
It runs from 3’ to 5’. |
It runs from 5’to 3’. |
Why is the Human Genome project called a mega project?
Fill in the blanks:
(a) Humans reproduce __________. (asexually/sexually)
(b) Humans are__________. (oviparous/viviparous/ovoviviparous)
(c) Fertilization is __________ in humans. (external/internal)
(d) Male and female gametes are __________. (diploid/haploid)
(e) Zygote is __________. (diploid/haploid)
(f) The process of release of the ovum from a mature follicle is called__________.
(g) Ovulation is induced by a hormone called the __________.
(h) The fusion of male and female gametes is called _____________.
(i) Fertilisation takes place in _____________.
(j) Zygote divides to form _____________which is implanted in uterus.
(k) The structure which provides vascular connection between fetus and uterus is called ____________.
Ttranscription or translation in ans b
Please explain in simple way
It's not ans. I mean this answer is too short & Not explainable
Thanks