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