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To produce the offspring each parent had to have at least one of what type of allele?
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∙ 14y ago
homozygous recessive
Wiki User
∙ 14y ago
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When mendel crossed a strain of tall pea plants with a strain of short pea plants he observed that all of the plants in the F generation were tall this suggests that?
All of the offspring had at least one dominant tall allele. All of the offspring in the F1 generation were heterozygous "Tt" meaning they each had one tall allele "T" and one short allele "t". It also suggest that one parent was homozygous tall TT and the other was homozygous short "tt."
What is the only genotype that will produce O type of blood?
The gentotype is ii that will produce blood type O. The allele i is recessive, so both parents must have at least one i allele, and the child must be ii (double recessive) to be blood type O. The parents' blood types do not have to be type O- the genotypes Ai (blood type A, as A is dominant), and Bi (blood type B) can produce blood type O offspring, as long as the child inherits the i allele.
Can a positive and o negative be full siblings?
Yes - but both of the parents would have needed at least one O allele and one Rh negative allele. If either parent was homozygous AA or OO (or homozygous Rh positive), then this would not be possible.
Can a woman with B blood and a man with AB blood have a child with O BLOOD?
No - this is not possible. The child must inherit one allele from each parent. This means that at least one parent must have a B allele in order for the child to have B-type blood. The only possibilities with B- X AB are B, A or AB.
Could you define Minor and major allele frequency?
A minor allele is the allele that has the least frequency among all the alleles in a given population and this has to be greater than 5%.
How are sexual and asexual alike?
1.They both can duplicate into two or more offspring. 2.Both can produce offspring (obviously) 3.The offspring is the same species as the "parent" 4.Invovle at least 1 "parent" 5.The offspring are also able to reproduce.
How are sexual and asexual reproduction alike?
1.They both can duplicate into two or more offspring. 2.Both can produce offspring (obviously) 3.The offspring is the same species as the "parent" 4.Invovle at least 1 "parent" 5.The offspring are also able to reproduce.
Is a sibling an offspring of a parent?
No, siblings are people who share at least one parent.
Is it true that if neither parent possesses a functional allele a child will always have PKU?
True you need at least one functional allele
When mendel crossed a strain of tall pea plants with a strain of short pea plants he observed that all of the plants in the F generation were tall this suggests that?
All of the offspring had at least one dominant tall allele. All of the offspring in the F1 generation were heterozygous "Tt" meaning they each had one tall allele "T" and one short allele "t". It also suggest that one parent was homozygous tall TT and the other was homozygous short "tt."
Father with homozygous genes for dominant trait?
This means that the father has two copies of the dominant allele for a particular trait. As a result, all of his offspring will inherit at least one copy of the dominant allele from him. This implies that all his offspring will either express the dominant trait or be carriers of the dominant allele.
What is the only genotype that will produce O type of blood?
The gentotype is ii that will produce blood type O. The allele i is recessive, so both parents must have at least one i allele, and the child must be ii (double recessive) to be blood type O. The parents' blood types do not have to be type O- the genotypes Ai (blood type A, as A is dominant), and Bi (blood type B) can produce blood type O offspring, as long as the child inherits the i allele.
How is a lethal allele maintained in a population?
A lethal allele is maintained in population for example when you use bug spray on cockroaches there will be at least one cockroach with an allele that protects it from the bug spray, it then breeds and the allele Is passed to it's offspring and they will also be immune to the pesticide. Those babies will most likely breed with each other when they are mature passing on the allele from both of the parents making the offspring 100% immune. It's the same concept for lethal alleles.
Can an ab positive father and an ab positive mother parent an a positive child?
Yes. Both parents have an A allele and a B allele. Each parent can only pass on one of his/her two alleles. If each parent passes an A allele to the child, then the child will have group A blood. If at least one parent passes on an Rh positive allele to the child, then the child would also be type Rh positive. So these two parents could have an A positive child.
How are sexual and asexual reproduction similar?
they both make offspring and use at least one parent
Which cross would produce the least phenotypic variation?
There are two choices that produce the least phenotypic variation. AA times aa produces only Aa offspring. AA times Aa produces and AA and Aa offspring.
If mother is o negative and if father is b positive could baby have a positive?
Definitely. One Rh positive parent is at least 50% likely to produce Rh positive offspring.
