General Quiz First Secondary On Genetics And Classification

1. All of the following belong to order rodentia except ..............

Rat

Gerboa

Rabbit

Squirel

2. An error in cell division called non-disjunction results in the formation of reproductive cells with an abnormal number of chromosomes where they gain or lose one copy of a chromosome, and hence the resulting child will have an extra or a missing chromosome in each of the body's cells. Which of the following cases has an extra chromosome?

Female with a triple-X syndrome

Male with a Down's syndrome.

Male with a Klinefelter syndrome

Male with XYY syndrome.

All of the above.

3. Match the following

A

B

C

D

Submit

4. If you were creating a classification key for a group of animals found on an island, which question would not separate turtles and birds?

Does the animal have feathers?

Does the animal lay eggs?

Does the animal have a shell?

Is the animal warm-blooded?

5. Dinoflagellates are phytoplanktons with ________

Tentacles

Bilateral symmetry

Stinging cells

Green pigments

6. Which of the following is a shared characteristic of ALL protists?

Eukaryotic

Heterotrophic

Live in dry environments

Multicellular

7. Which of the following statements is INCORRECT.

In human males, there are 44 autosomes and a pair of homomorphic sex chromosomes.

In human females, there are 44 autosomes and a pair of homomorphic sex chromosomes.

In human males, there are 44 autosomes and a pair of heteromorphic sex chromosomes.

In humans, there are 44 autosomes and a pair of sex chromosomes.

8. The flowers in Antirrhinum plant have ........... different colours

Two

Three

Four

Five

9. In a certain strain of sheep, if a horned male sheep is crossed with a hornless female producing the following: In Males, 3 horned : 1 hornless while in Females, 3 hornless : 1 horned So this genetic case is a

Sex linked trait

Sex influenced trait

Sex limited trait

Recessive lethal genes

10. ................... is an example of mollusca

Scolopendra

Oyster

Riccia

Amoeba

11. The most developed living organism among the following is ...............

Dinoflagellates

Chlamydomonas

Euglena

Trypanosoma

12. The individual of a genotype (AABb) produces the gamete (aB) in a ratio of ............ %

25

50

Zero

100

13. The Manx cat is a breed of domestic cat which shows two phenotypes, a tail-lessness cats and cats with standard tails. The tail-lessness trait is dominant over the other one with standard tails. A cross between two Manx cats yields a phenotypic ratio of 2: 1. What is the best explanation?

The dominant trait is lethal in its homozygous form.

The trait forms sterile progeny.

Either the dominant or the recessive allele in its homozygous form is lethal.

The recessive allele for the trait is lethal in its homozygous form.

14. The mammal that does not give birth but lays eggs and incubates them is:

Armadillo

Spiny ant eater

Hedgehog

Whale

15. In a certain strain of mammals, if a black male is crossed with a white female producing the following: Black female : Grey female : White male : Red male in a ratio 1 :1 : 1 : 1 So the recessive gene here is the ------------

Black

White

Red

Mixing between black and white

16. Which organisms represent the common ancestor of all photosynthetic plastids found in eukaryotes?

Euglena

Diatoms

Dinoflagellates

Cyanobacteria

17. These two animals share one of the following characteristics ---

Compound eyes

The Body consists of two regions

Reproduce by regeneration

Breathe by means of tracheoles or lung books

18. On a rainy day, you notice a long, brown, bilaterally symmetric organism in your garden. This organism has a body that is divided into segments, from the head to the tail.Under which phylum will you classify the organism?

Arthropoda

Mollusca

Chordata

Annelida

19. A kingdom where its members consist of filaments called hyphae

Protista

Monera

Planta

Fungi

20. A fish where its gills are covered by an operculum ----

Shark

Dolphin

Ray fish

Bolti fish

21. According to diochotomous key, what is the class of the following organism in the figure, if you know that it belongs to phylum protozoa? Question1- Does it possess pseudopodium? If Yes.....Class Sarcodina If No ....Go to Q.2 Question2- Does it possess flagella? If Yes ....Class Flagellata If No ..... Go to Q.3 Question3- Does it move by cilia? If Yes ....Class Ciliophora If No.... Class Sporozoa

Sarcodina

Sporozoa

Ciliophora

Flagelata

22. While snorkeling, a student observes an active marine animal that has a series of muscular arms bearing suckers associated with its head. Segmentation is not observed, but a pair of large well developed eyes is evident. The student is observing an animal belonging to ......

Echinodermata

Porifera

Mollusca

Cnidaria

23. Inheritance of blood groups in human is a case known as .............

Lack of dominance

Complete dominance

Multiple alleles

All of the previous

24. The ratio 2 : 1 represents a genetic case called ------

Doninant lethal genes

Recessive lethal genes

Sex- linked trait

Complementary genes

25. All persons with the following blood groups may produce a child with a blood group O^-ve except:

A+ve

B-ve

AB-ve

O-ve

26. A haemophyliac father can't inherit the disease to

His first daughter

His son

His second daughter

His third daughter

27. The gene is made up of a sequence of .........

DNA

Nucleotides

Amino acids

Cromosomes

28. Sea star belongs to phylum

Echinodermata

Mollusca

Cnidaria

Porifera

29. Class sarcodina is characterized by having .......................

Cilia

Pseudopdia

Flagella

No organs of locomotion

30. .............. are from the warm-blooded animals

Mammals

Fishes

Amphibians

Reptiles

31. The ............. comprises all the genes found in the nucleus of each somatic cell

Genome

DNA-typing

Genetic finger print

Repetitive sequence of DNA

32. In human, sex chromosomes come after the ............. pair in size

Eighth

Ninth

Sixth

Seventh

33. The chromosome is composed of .........

DNA and RNA

DNA and protein

RNA and polysaccharides

DNA and lipids

34. Lamprey belongs to class:

Reptilia

Chondrichthyes

Agnatha

Ostichthyes

35. A male can transmit short sightedness condition to another male through .....

His daughter

Blood transfusion

His breath

Surgical operation

36. The three pairs of genes responsible for the presence of Rhesus factor antigens are located on ............ pair(s) of chromosomes

One

Two

Three

Four

37. ............. is a parasite that causes human malaria

Plasmodium

Euglena

Paramecium

Amoeba

38. Repetitive sequences of genetic material are impossible to be similar in two individuals unless they are ............

Fraternal twins

Mother and her daughter

Father and his son

Identical twins

39. From the sex-limited trait there is ...........

Laying eggs in birds

Haemophilia

Mongolism

Genetic baldness

40. A frog with body temperature of 20 ^oC is transferred to an area with 30 ^oC temperature. What will be the body temperature of frog in the new environment?

20 oC

30 oC

25 oC

Fluctuates between 20 oC - 30 oC

41. Which of the following sentences doesn't suit the inheritance of milk production in mammals?

Rate of gene activity has no relation with the sex of the organism.

Both male and female mammals have mammary glands.

Genetic factors of milk production are similar in both sexes.

Male sex hormones inhibit the action of gene.

42. What will be the ratio obtained from a dihybrid cross of two tall pea plants having pink flowers?

1:2:1

3:1

9:3:3:1

9:7

43. In the following pedigree, (R) is the gene for milk production, square shape is a male , circle shape is a female. Also shaded shapes mean the appearance of the character while unshaded shapes mean non-appearance of the character. If you know that the genotype of the member number (1) is rr so what is the genotype of number (5)?