HEREDITY
1. The process of acquiring change is called __________.
2. _______ (Father of genetics) experiments stands for ________ .
3. TT or YY, Tt or Yy are responsible for a ________ character.
4. The study of fossils (evidence of ancient life forms) is called __________ .
5. Differences in characters with in closely related groups of organisms are called
___________ .
6. Mendel had chosen __________ of characteristics for his study in pea plants.
7. Externally visible characters are called ____________ .
8. The phenotypic ratio in monohybrid cross is _____ , and genotypic ratio is _______.
9. Alleles are same for character in _________ and different in ____________.
10. Phenotypic ratio in di hybrid cross is ___________.
11. Transmission of characters from parent to offspring is called _______and the process is called _________ .
12. Mendel factors are now known as ______ (segment of DNA).
13. Each human cell contains _______________________ pairs of chromosomes.
14. The allosomes (sex chromosomes) present in female are ____ and in males are ___.
15. Variations are formed during _________ reproduction or because of errors in DNA copying.
16. Change in frequency of genes in small population is known as ___________.
17. The law of inheritance of acquired characters was proposed by __________.
18. ______________ proved in rats that the body changes won’t be passed to its offspring.
19. Theory of natural selection was proposed by ___________ .
20. ______________ wrote the book “The principals of geology”.
21. Evolution of new species is called ______________ (macro evolution).
22. Evolution of homologous traits is called ________ and heterologous is ________ evolution.
23. Paleontologists determine the age of fossils by _______________.
24.______________ : 1. Homo habilus 2. Homo erectus 3. Homo sapiens neanderthalensis 3.Homo sapiens
(present man).
25. There are nearly ______ vestigial (not useful) organs in man (moving museum of vestigial organs).
Ex. Pinna, hair on skin, appendix
Nice
More than bits in biology
Very nice, easy to practice
its really easy