Creating molecules such as enzymes that regulate cell functions thes enzymes belong to a larger class of molecules known as.

How is a recessive allele different from a dominant allele?

professor190 [17]

Answer: 1) Recessive allele is unable to express its effect in the presence of dominant allele WHILE a dominant allele is able to express itself even in the presence of its recessive allele.

2) Recessive allele produces its phenotypic effect only in the presence of a similar allele. E.g; tt is dwarf. WHILE a dominant allele does not require another similar allele to produce its effect on the phenotype. E.g; Tt is tall.

3) Recessive allele forms a defective polypeptide or enzyme so that the expression consists of absence of the effect of dominant allele. E.g; white flower colour in Pea. WHILE a dominant allele can form a complete polypeptide or enzyme for expressing its effects. E.g; red colour of flower in Pea.

Explanation:

4 0

2 years ago

At the end of the term, the professor locks the students in the classroom with plenty of food and water and leaves them there fo

levacccp [35]

Answer:

a. 0.7

b. 0.3

c. Yes

d. 90

Explanation:

As the random mating population was escaped from external evolutionary forces such as mutation, natural selection, and migration, the gene frequency will not change over time. The population will be at Hardy-Weinberg equilibrium throughout the time.

As the number of sleepyheads (recessive trait) was 90 out of class of 1000 students at the start of course.

q²=0.09 ∵ fraction of sleepyheads = 90/1000 = 0.09 denoted by q²

q that is the recessive gene frequency will be equal to 0.3 (by taking square root of P²

Hence, allele frequency of a allele is 0.3

As, frequency of dominant allele A is denoted by letter p and p+q=1

∴ p=0.7 As p=1-0.3

Hence, allele frequency of A allele is 0.7

Counting the probability of aa alleles (sleepyheads);

As a= 0.3

∴ aa= 0.3×0.3 = 0.09 (In terms of percentage, it is 9%)

To 0.09×1000= 90 or 9% of 1000 = 90

Hence, 90 students should be sleepyheads.

8 0

2 years ago

Rods and cones are similar in that they both _____. see concept 50.3 (page 1117) view available hint(s) rods and cones are simil

EastWind [94]

Rods and cones are similar in that they both release glutamate as the primary neurotransmitter. During signalling the rod and cone photoreceptors signal their absorption of photons via a decrease in the release of the neurotransmitter glutamate to bipolar cells at its axon terminal. Every rod and cone photoreceptor release the same neurotransmitter, glutamate.

3 0

3 years ago

A student is asked to draw a food web in which the same organism is a primary consumer as well as a secondary consumer. how shou

Paladinen [302]

The correct anwser is C.

5 0

2 years ago

What is the weakest bone in your body?

nexus9112 [7]

Answer:

stapes

The stapes is the smallest and lightest bone in the human body and is so-called because of its resemblance to a stirrup (Latin: Stapes).

Explanation:

I hope that this answer has helped you to more thoroughly understand your question asked. If you have any further questions, please do not hesitate to ask them below.

Have a great rest of your day/night!

8 0

2 years ago