Question

please please please please help​

Answer 1

Answer:

a) Monohybrid Cross

b) Pisum sativum

c) 9:3:3:1(Phenotypic)

d) Metaphase

e) Gene(more correctly cistron)

f) X and Y

g)46 as 23 pairs

h)Genome

i) Heterozygous

Answer 2

Answer:

1.A cross between two parents possessing a pair of contrasting characters is known as monohybrid cross. To carry out such a cross, each parent is chosen to be homozygous or true breeding for a given trait (locus).

2. Pisum sativum(garden pea) is the scientific name of the plant on which mendel performed his experiment

3.Pure homozygous offsprings

4.During metaphase, the “change phase,” all the chromosomes are aligned on a plane called the metaphase plate, or the equatorial plane, midway between the two poles of the cell. The sister chromatids are still tightly attached to each other by cohesin proteins. At this time, the chromosomes are maximally condensed.

5.A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.

6.In this system, the sex of an individual is determined by a pair of sex chromosomes. Females typically have two of the same kind of sex chromosome (XX), and are called the homogametic sex. Males typically have two different kinds of sex chromosomes (XY), and are called the heterogametic sex.

7.Cells of human being have 23 pairs of chromosomes, 22 pairs of autosomes and one pair of sex chromosome. Hence, each individual has 46 chromosomes in their cells. Hence, the number of chromosomes present in a nerve cell of a human being are 46 chromosomes

8.In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes. ... Humans are diploid organisms, which means that they have two alleles at each genetic position, or locus, with one allele inherited from each parent.

9.The condition of having both the dissimilar alleles is known as heterozygous.