Question

The figure below shows one unreplicated chromosome with its centromere (left side) and then the same chromosome after DNA replication "S") (right side). The letters by each dash represent alleles for two different kinds of genes: there is the "r" allele for one type of gene and the "H" allele for a second kind of gene. In genetics, letters represent different kinds of genes and uppercase vs lowercase letters represent different alleles for the same gene: e.g., purple allele (P) vs. white allele (p) for a flower color gene a. haploid (n) or diploid (2n)? b. a. haploid (n) or diploid (2n)? b. How can you tell? c. how many different kinds of genes a d. how many chromosomes are shown? How can you tell? c. somatic cell or gamete? d, how many different kinds of genes are shown? e. how many different kinds of alleles are shown? f how many chromosomes are shown? re shown?

Answer 1

1.
a) Haploid (n) or dipolid (2n)?
Answer: Diploid.
b) How can you tell?
Answer: As all chromosomes are in paired state and cell has two copies of each gene.
c) How many different kinds of gene are shown?
Answer: 8 different genes are shown namely: T, F, A, D, h, g, b and r
d) How many chromoshomes are shown?
Answer: 6 chromosomes are shown.

2.
a) Haploid (n) or dipolid (2n)?
Answer: Diploid.
b) How can you tell?
Answer: As all chromosomes are in pairs i.e. their one more copy is present in cell.
c) Somatic cell or gamete?
Answer: Gamete
c) How many different kinds of gene are shown?
Answer: 5 different genes are shown namely: F, G, D, R and H
d) How many different kinds of alleles are shown?
Answer: 8 different alleles are shown namely: F, G, g, D, d, R, r and H
f) How many chromoshomes are shown?
Answer: 6 chromosomes are shown.

3.
a) Haploid (n) or dipolid (2n)?
Answer: Haploid.
b) How can you tell?
Answer: As all chromosomes are in single copy
c) How many chromoshomes are shown?
Answer: 5 chromosomes are shown.
d) How many different kinds of gene are shown?
Answer: 7 different genes are shown namely: B, N, L, F, t, r and g

4.
a) Haploid (n) or dipolid (2n)?
Answer: Diploid.
b) How can you tell?
Answer: As all chromosomes are in paired state and cell has two copies of each gene.
c) How many chromoshomes?
Answer: 4 chromosomes are shown.
c) How many different kinds of gene are shown?
Answer: 3 different genes are shown namely: R, F, D

5. Shown below: