Both allels are contributed by the female parent.
A. TRUE
B.FALSE
2007-07-24 09:58:06 · 7 answers · asked by eeyore_girly17 1 in Science & Mathematics ➔ Biology
False, both alleles are contributed by BOTH parents.
2007-07-24 10:02:38 · answer #1 · answered by Anonymous · 0⤊ 3⤋
False.
Fertilization is the uniting of two meiotic cells. Such cells (gametes, like sperm and eggs) have only one chromosome set - they're haploid. That means that they have only one allele, since they only have one chromosome of a certain type. Somatic (body) cells are diploid in that they have two complete sets of chromosomes.
Now, if you're talking about mitochondrial DNA, then the answer is true. During fertilization, the sperm's tail drops off as it penetrates the egg. All the mtDNA is contained in the sperm's tail, since mitochondria produce energy and the tail (flagellum) is where the sperm needs energy for propulsion.
So, this question really depends on your level of biology. In a general sense, though, it's false.
2007-07-24 21:03:19 · answer #2 · answered by Sci Fi Insomniac 6 · 0⤊ 0⤋
B. False, if two alleles are contributed, then one must be from each parent.
2007-07-24 17:30:57 · answer #3 · answered by N E 7 · 1⤊ 0⤋
False.
One allele comes from the female parent, and one from the male parent.
2007-07-24 22:12:52 · answer #4 · answered by Anonymous · 0⤊ 0⤋
False You need a man for sexual reproduction
2007-07-24 17:14:28 · answer #5 · answered by I am hidden yet here 1 · 0⤊ 0⤋
i'd say false.. you would need one from each parent, but the dominant is the one who is going to show up, no matter which parent it comes from..
2007-07-24 17:01:27 · answer #6 · answered by brazilianlek 3 · 1⤊ 0⤋
You know that people get their genes from both parents, so which does it have to be?
2007-07-24 17:00:34 · answer #7 · answered by ecolink 7 · 3⤊ 0⤋