Complete the following table comparing and contrasting diploid and haploid cells. Diploid
Haploid
Description
Homologous chromosome pairs
Designated N
Designated 2N
Has one member of each
homologous chromosome pair
Includes gametes
Includes somatic cells
Heart and liver cells
Sperm and Egg cells

Please find the description and it's pair below:

Homologous chromosome pairs - DIPLOID

Designated N - HAPLOID

Designated 2N - DIPLOID

Has one member of each

homologous chromosome pair - HAPLOID

Includes gametes - HAPLOID

Includes somatic cells - DIPLOID

Heart and liver cells - DIPLOID

Sperm and Egg cells - HAPLOID

Explanation:

1. Diploid organism is an organism with two sets of chromosomes, with each set contributed by each male and female parent. Chromosomes from the male parent is found side by side with chromosomes from the female parent to form HOMOLOGOUS CHROMOSOME PAIR in a diploid organism. Diploidy is denoted by 2N, where N represents number of one set of chromosomes. Diploid cells include somatic or body cells such as heart and liver cells.

2. Haploid organisms are organisms that contain one set of chromosome, formed as a result of meiotic division of diploid cells. Hence, a haploid cell contains one member of each homologous chromosome pair. Haploidy is denoted by N, meaning number of one set of chromosome. Haploid cells include gametes or sex cells such as sperm and egg cells.

Ans.

Limb development can be defined as formation of limbs in embryo as the result of interactions between ectodermal and mesodermal components of the limb buds. In humans, it is divided into 23 stages. Stage 13 and stage 30 can be compared as given below:

Stage 13 represents the first stage, at which all four limb buds are present, During this stage lens disc appears for the first time and closure of otic vesicle takes place.

Stage 20 represents limbs with greatest length, upper limbs are slightly bent near elbow. At this stage, fetus has small and stubby fingers, with slightly curved hands.