Since hemophilia is an X-linked recessive disorder, the probability depends on the X alleles.
So, if father has dominant allele (H), the probability that a <span>female child would suffer from hemophilia (genotype: hh) is 0%, no matter of mother's genotype:
Father Mother
Parents: H x Hh
Daughter: HH or Hh
</span> Father Mother
Parents: H x HH
<span>Daughter: HH
</span>
Father Mother
Parents: H x hh
<span>Daughter: Hh or Hh
</span>
But, if the father has recessive allele, the probability that a <span>female child would suffer from hemophilia (genotype: hh) will depend on mother's genotype.
If mother is dominant homozygous, there will be 0% of possibility:
</span> Father Mother
Parents: h x HH
<span>Daughter: Hh
</span>
If mother is recessive homozygous, the possibility is 100%:
Father Mother
Parents: h x hh
<span>Daughter: hh
</span>
If mother is heterozygous, the possibility is 50%:
Father Mother
Parents: h x Hh
<span>Daughter: Hh or hh</span>
Answer:
3. Homeostasis
Explanation:
The state where our bodies maintain an internal equilibrium is called homeostasis.This process ensures biological systems keep on being stable while adjusting to changing conditions which are essential for survival.Homeostasis involves many chemical reactions for example, body hormones should be synthesized to breakdown other molecules; energy molecule called adenosine triphosphate is broken down to adenosine diphosphate to release energy that is used my enzymes in the body to break /build molecules
The advantage of being double stranded in DNA is that double strands makes it much more stable. <span>Having two alleles for one gene gives variation. </span><span>Double Stranded DNA can tolerate many risk factors from the homeostasis' processes that is keeping the cells alive. </span><span>Double-stranded DNA ensures that the actual genetic information is less likely to react, and it can be opened in the case of replication and transcription. </span> <span>Another advantage of double strand DNA is the ability of the cell to create a new portion of DNA in case of DNA damage, by using the non-damaged strand.</span>
This is the process of making glucose in plants. Photosynthesis goes through two individual stages:
Stage 1: Light dependent reaction (depends on the presence of light; it can’t happen in the dark)
Stage 2: Light independent (dark reaction) (works in the absence of light, but calling it a dark reaction might be misleading; It can just as well happen in the presence of light).
