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Natasha_Volkova [10]
3 years ago
7

In the dihybrid cross you performed, EeHh x EeHh, what is the probability of producing an offspring with this genotype: EEHh

Biology
1 answer:
ikadub [295]3 years ago
4 0

The probability of producing an offspring with this genotype: EEHh is 1:1

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What can result from weakening of digestive smooth muscle with age?
Alex17521 [72]

Answer:

Weakening of digestive smooth muscle with age can cause constipation.

Explanation:

Smooth muscles in the digestive system have the role to move food down the tract via radially symmetrical contractions (peristalsis). With age, the function of smooth muscles reduces, causing the food to move more slowly through the alimentary canal (digestive tract). As a consequence, water gets absorbed from food waste, which can cause constipation.

8 0
3 years ago
13. A biochemist isolated and purified molecules needed for replication. When DNA was added, replication occurred but the DNA mo
zalisa [80]

Answer:

DNA ligase

Explanation:

DNA replication is a process whereby a particular DNA makes a copy of or synthesizes itself. It consists of several steps with some important enzymes for successful, error free replication. The various steps are as follows;

  • Unwinding of the double helix structure of the DNA and formation of replication fork. The enzyme involved here is the DNA helicase.
  • Primer, a short piece of RNA becomes synthesized and binds to the 3' end of one of the 2 strands of the DNA, the leading strand. The enzyme involved is the DNA primase.
  • Replication of the <em>leading strand</em> then proceeds with the elongation of the primer through the addition of bases in the 5' to 3' direction leading to the formation of continuous strands.
  • The other strand of the DNA, known as the <em>lagging strand </em>starts its own replication by binding with multiple primers at different regions of the strand. Bases are then added to each primer leading to the formation of several, short discontinuous DNA strands known as Okazaki fragments. The enzyme involved in the elongation process is the DNA polymerase.
  • Next is the termination of the replication process after the formation of the continuous and discontinuous strands. Exonuclease enzyme removes primers from the synthesized strands. Primers are replaced by appropriate DNA bases and the Okazaki fragments are joined to form a unified DNA strand by an enzyme known as the DNA ligase.

The many, few nucleotides long DNA segments observed by the Biochemist are the Okazaki fragments that should have been joined together by the DNA ligase.

Hence, DNA ligase must have been the component left of the mixture.

7 0
3 years ago
________ sweat glands are widely distributed across the body surface, ________ glands are located wherever hair follicles exist,
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Answer:

<h2>merocrine, sebaceous, and apocrine</h2>

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Sebaceous glands are located where hair follicles have existed,

apocrine sweat glands are found only in a few areas like axilla. Apocrine -are restricted to specific areas like the axilla, nipple of the breast, pubic region and around the anus area etc.

5 0
3 years ago
A marine biologist took two true breeding fish, one orange with stripes, and one white with spots, and crossed them. All of the
fiasKO [112]

Yes! We can see which are dominant!

In this first generation progeny, we see that stripes are dominant and spots are recessive. And white bodies are dominant over orange!

I am a bit rusty on genetics, but I believe I am correct

8 0
2 years ago
Which of the following best defines a gene pool?
scZoUnD [109]

Answer:

A. The sum of all genetic traits in a population's individuals at a given time

Explanation:

.........

6 0
2 years ago
Read 2 more answers
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