biology quiz 2

A scientific law requires that all observations and experiments verify the theory

True

All members of each species have the same number of chromosomes

True

The chromosome number of a human female is 44 + XX; of a male, 44 + XY.

True

The sex of the offspring is determined:

solely by which chromosome form the male, the X or the Y, combines with the female chromosome but Ignitia answer is: by the combination of the sex chromosomes of the male and female I asked for help and my first answer was right.

All ova contain sex chromosomes corresponding to:

X

The alternative form of a gene controlling a given characteristic is called:

an allele

Within a set of human chromosomes, 22 pairs are called:

autosomes

"Linkage" refers to genes for different traits

being located on the same chromosome

Fertilization produces in the offspring:

double the haploid number of chromosomes

When the alleles of a gene pair are identical they are said to be:

homozygous

Segregation and independent assortment of genetic material occurs during:

meiosis

The ratio of the offspring of 9:3:3:1 is for the:

phenotype

What is meant by homologous chromosomes?

the gene's alleles are found in matched chromosome pairs

As a result of nondisjunction, a female gamete may contain:

two sex chromosomes no sex chromosomes

The nucleus of each cell in the human body contains _____ chromosomes from each parent.

23

If an organism has 6 haploid chromosomes, how many chromosomes are present?

6

If the male parent has the genotype AA and the female parent has the genotype aa, offspring's genotype will be:

Aa