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What is 1 + 3?
From the father
gamete, containing half of the normal amount of chromosomes
Containing full amount of chromosomes
Sex cell (oocyte, sperm)
a form of a gene
a genotype containing a dominant and recessive allele (Hh)
is not present unless both alleles are the same (hh)
any chromosome that is not a sex chromosome
an expression of an allele related to the chromosomal sex of an individual
cell division in which the nucleus divides into nuclei containing the same number of chromosomes
one member of a chromosome pair
cell division in which gametes are made
a packet of extra chromosomes released from the egg when meiosis is finished.
meiosis in which paired chromosomes fail to separate, can cause trisomies
the suppression of a gene by the effect of an unrelated gene
Also known as trisomy 21, this disease is caused by an extra copy of the 21st chromosome
The Russian royal family affected by hemophilia, a sex-linked genetic disorder
one of two identical strands into which a chromosome splits during mitosis
the region of a chromosome at which chromatids are connected
a physical expression of a genotype
the combination of genes for one or more specific traits
the combined effect of many genes, polygenetics (AaBBCCDD)