Anerobic organisisms need to make oxoygen just like photosynetheic plants
C is the answer bc it always been thought to me
Answer:
a. Ed/eD
b. RF=0.12
Explanation:
The alleles for genes D/d and E/e are:
- D_: only on neck spikes
- dd: along back spikes
- E_: long spikes
- ee: short spikes
After testcrossing a double heterozygote (DdEe x ddee) there are 4 types of offspring, two of them much more abundant than the other two. The homozygous recessive parent can only produce <em>ed</em> gametes, so the phenotypes of the offspring depend on the gametes that the double heterozygous parent produced.
The offspring was:
- Ed/ed 79
- ed/ed 12
- ED/ed 10
- eD/ed 76
Total: 177
a) This result suggests that the genes are linked. Since recombination is a rare event, the most abundant phenotypes always come from the parental gametes, and the least abundant come from the recombinant gametes.
<u>Therefore, the genotype of the doube heterozygote parent was </u><u><em>Ed/eD</em></u><u>.</u>
b) Recombination frequency (RF) = Recombinants / Total
RF = (12+10)/177
<u>RF = 0.12</u>
People with two copies of the sickle cell gene have the disease. People who carry only one copy of the sickle cell gene do not have the disease, but may pass the gene on to their children. Abnormal hemoglobin, called hemoglobin S, causes sickle cell disease (SCD). The problem in hemoglobin S is caused by a small defect in the gene that directs the production of the beta globin part of hemoglobin. This small defect in the beta globin gene causes a problem in the beta globin part of hemoglobin, changing the way that hemoglobin works.
Answer:
A stream of water holds thriving bacteria. If drought conditions caused the stream to dry up, the bacteria mostly likely respond to survive by <u>transforming into endospores.</u>
<u></u>
Explanation:
The bacteria transform into the hardcore bacterial endospores. These structures of bacteria are adapted to stresses in the environment. The bacteria can remain dormant for long periods with its genetic information securely protected under a tough coating. It is also very hard to kill bacteria endospores because they are resistant to heat, dehydration and even disinfectants.
Learn More:
For more on endospores check out;
brainly.com/question/247607
brainly.com/question/13187855
#LearnWithBrainly
