Allosomes and Autosomes

Q. Which one of the following conditions of the zygotic cell would lead to the birth of a female child?

1. Two X chromosomes
2. Only one Y chromosome
3. Only one X chromosome
4. (a) and (c) above.

Q.

Do triple X syndrome occurs in men?

Q. How many autosomes are present in a sperm?

1. 23
2. 22
3. 1
4. 44

Q.

Genetically modified plants can be produced by transferring desired

1. Cytoplasm

2. Carbohydrates

3. Genes

4. Proteins

Q. ploidy of primary spermatocytes and secondary spermatocytes?

Q.

Mendel used the term ‘allele’ in his experiments. Which of the following options explains the meaning of allele correctly?

1. Sex chromosomes

2. Haploid gametes (sperm and ovum)

3. Different versions of the same gene

4. None of these

Q. If 46 chromosomes are present at G1 phase then the number of chromosomes after S phase would be

Q. Mendel used the term ‘allele’ in his experiments. Which of the following options explain the meaning of allele correctly?

1. Different versions of the same gene
2. Sex chromosomes
3. Haploid gametes (sperm and ovum)
4. None of these

Q. The number of auto chromosomes in human sperms are

1. $22$
2. $44$
3. $11$
4. $45$

Q. Number of pairs of autosomes in humans is ..........

1. 22
2. 23
3. 46
4. 44

Q. How many autosomes are present in a sperm?

1. 22
2. 1
3. 44
4. 23

Q. In autosomal dominant disorders, just one copy of the gene, or one allele is sufficient to create all the damage and cause the disorder.

1. True
2. False

Q.

Which of the following correctly represents the number of autosomes and allosomes in human beings?

1. (21+2) pairs

2. (22+1) pairs

3. (2+21) pairs

4. (19+4) pairs

Q. How many pairs of autosomes are there in the human buccal epithelial cells?

1. 23
2. 22
3. 44
4. 46

Q. Which is the correct set?

	List I		List II
I	Wild type	A	Chromosomes other than sex chromosomes.
II	Syngamy	B	Not cultivated or domesticated.
III	Autosome	C	Union of gametes in fertilization.
IV	Apomixis	D	Asexual reproduction.

1. I- D, II- B, III- C, IV- A
   
2. I- A, II- B, III- C, IV- D
   
3. I- B, II- C, III- A, IV- D
   
4. I- A, II- C, III- D, IV- A
   

Q. A woman with 47 chromosome due to presence of additional 21 chromosome is characterized by

1. Superfemale
2. Turner's syndrome
3. Down's syndrome
4. Triploidy

Q. Barr body is derived from

1. Autosomes in males
2. Autosomes in females
3. X chromosome in female
4. X chromosome in males

Q. Autosomes in humans are

1. $22$ pairs
2. $11$ pairs
3. $23$ pairs
4. $43$ pairs

Q. Heterologous chromosomes are similar in shape and organisation.

1. False
2. True

Q. In Down's syndrome, one extra chromosome is added to

1. 21${}^{st}$ pair
2. 22${}^{th}$ pair
3. 20${}^{th}$ pair
4. None of the above

Q. Number of autosomes in human sperm is

1. 11
2. 22
3. 44
4. 45

Q. The chromosomes other than sex chromosomes are called

1. Autosomes
2. Karyosomes
3. None of the above
4. Heterosomes

Q. Down's syndrome is due to

1. Non-disjunction of chromosomes
2. Crossing over between genes
3. Linkage of genes
4. Sex linked inheritance

Q. What is the number of autosomes in a normal female?

1. 21
2. 22
3. 44
4. 23

Q. Select the correct pairs.

1. Humans
2. Males
3. 23rd pair
4. XX
5. XY
6. Female
7. Autosomes
8. 46 chromosomes
9. sex chromomes
10. 1-22 pairs

Q. For organisms that reproduce sexually, one of the chromosomal pair is different from the other. They are also called:

1. Sex chromosomes
2. Allosomes
3. Autosomes
4. (a) and (c) above.

Q. Which one of the following conditions of the zygotic cell would lead to the birth of a female child?

1. Only one Y chromosome
2. Two X chromosomes
3. (a) and (c) above.
4. Only one X chromosome

Q. In a homologous pair, one chromosome is inherited from the mother while the other is inherited from the father.

1. False
2. True