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F1 plant
When all cells are counted, each ________ generates an equal amount of all four types of gametes because of the various chromosomal configurations during metaphase I am equally likely.
Sex determination
________ is an active field of study that will offer more nuanced knowledge in the coming years.
morphological characteristics
The biochemical, physiological, and ________ associated with "males "and "females "are proving to be more complex than previously assumed, with several genes involved in their development.
WNT4
________ (on chromosome 1, an autosome) encodes a protein that stimulates ovarian development and is required for the development of female gonads.
XY embryo
A(n) ________ with additional copies of the WNT4 gene can develop rudimentary female gonads.
Drosophila
Traits that differ from the wild type, such as white eyes in ________, are referred to as mutant phenotypes because they are caused by alleles that are thought to have started as alterations, or mutations, in the wild- type allele.
Male fruit flies
________ have one X chromosome and one Y chromosome, whereas females have two homologous X chromosomes.
non wild type
In flies, the gene for a specific character gets its symbol from the first mutant (________) identified.
Y chromosome
The ________ is almost entirely handed down from father to son.
Human genes
________, for example, are generally written in full capital letters, such as HTT for the gene implicated in Huntington's disease.
autosome pairs
There are three ________ and one pair of sex chromosomes.
F1 plant
In a(n) ________, each cell that goes through meiosis generates two types of gametes.
