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Luda [366]
3 years ago
9

PLS HELP!!!! will mark brainlyiest!!!!!!

Biology
1 answer:
Sedbober [7]3 years ago
6 0

Answer:

you want us to write a paragraph for you??

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What law best explains why an organism with Tt will show only the dominant phenotype
nirvana33 [79]

This is the law of dominance in genetics. The dominant allele will mask the effects of the recessive allele and therefore will be the visible trait of the phenotype. Most often, the dominant allele codes for functional proteins, while the recessive does not code for functional proteins. Dominance in genetics is significant in Mendelian inheritance.  






4 0
3 years ago
Read 2 more answers
What a water pollution<br> plz hurry
Jet001 [13]

Answer:

pollution of water. or do you mean pollutant in which case would be like garbage or oil spills

6 0
2 years ago
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In humans, brown eyes are dominant to blue eyes. If a blue-eyed man has children with a brown-eyed woman whose mother has blue e
nlexa [21]

Answer:

50%

Explanation:

This question involves a gene coding for eye color in humans. The allele for brown eyes (B) are dominant to blue eyes (b). This means that blue-eyed individual will possess genotype: bb.

According to this question, a blue-eyed man (bb) has children with a brown-eyed woman (B_) whose mother has blue eyes (bb). Since the mother of the brown-eyed woman has a blue eye, this means that the woman will be heterozygous for brown eye (Bb).

Hence, the parents in this question will cross as follows: blue eyed man (bb) × brown-eyed woman (Bb). The offspring/children will have the following genotypes (see attached punnet square); Bb, Bb, bb, bb.

Based on the question, 2/4 = 1/2 of the children will be heterozygous for the eye color trait. That is, ½ × 100 = 50%.

4 0
3 years ago
A DNA molecule produced by combining DNA from different sources is known as
Digiron [165]

Answer:

A DNA molecule produced by combining DNA from different sources is known as recombinant DNA.​

Explanation:

Recombinant DNA (rDNA) can be obtained by coupling DNA fragments from different sources, a process that is performed at the restriction site level and uses enzymes.  

Once rDNA has been designed —cutting out fragments of DNA that are then reassembled— it must be brought to a specific location in the cells, to be copied and expressed, using means of transport called vectors.

<u>DNA recombination</u> is performed in biotechnology laboratories specialized in the manipulation of genetic material.

The other options are not correct because:

  • <u><em>Mutant or mutated DNA</em></u><em> is a DNA molecule with an alteration of its nitrogenous base sequence </em>
  • <u><em>Hybrid DNA</em></u><em> is a variant of recombiant DNA, in which only two DNA molecules from different sources are used. </em>
  • <u><em>Polyploid</em></u><em> refers to cells containing the genome of different species.</em>
8 0
2 years ago
The small, almond-shaped organs of the female reproductive system, suspended by ligaments in the upper lateral portion of the pe
Mrac [35]

The small, almond-shaped organs of the female reproductive system, suspended by ligaments in the upper lateral portion of the pelvic cavity are known as ovaries.

Ovaries are oval-shaped so are also termed almond-shaped organs and are present on the sides of the uterus in females. In females, the processes of pregnancy and ovulation which is also termed menstruation are controlled by the hormones that are made by ovaries. These hormones include estrogen and progesterone. Another major function of the ovary is that it releases the female gametes known as eggs during the menstrual cycle.

The ovaries are attached to two types of ligaments which are the ovarian ligament and suspensory ligament. Ovaries are connected to the womb by the ovarian ligament while the suspensory ligaments of the ovary contain the ovarian vessels and nerves.

To learn more about ovaries, click here:

brainly.com/question/1305741

#SPJ4

7 0
2 years ago
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