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jeka57 [31]
3 years ago
9

Explain how a plant is made resistant to the insects by genetic modification

Biology
1 answer:
DiKsa [7]3 years ago
8 0

Answer:

they contain Bacteria name known as Bacillus thureginesis .if insects feed on plants ,it destroys their alimentary canal and they die.

hope it helps you

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A couple plans to have a child. the mother is homozygous for an autosomal recessive mutation. the father is heterozygous for the
adoni [48]

<u>Answer</u>:

  • The possible genotypes of the children are Hh and hh.
  • The probability of genotype Hh = 1/2
  • The probability of genotype hh = 1/2

<u>Explanation</u>:

  • <em>Autosomal genes</em> are the genes present on any of the chromosomes except the sex chromosomes.
  • An autosomal recessive mutation is the mutation in an autosomal gene which only expresses itself in the phenotype in homozygous condition and affects both males and female equally.
  • For the given question, let the autosomal gene be represented by H (dominant) and h (recessive)
  • According to the question,

Since the <em>mother</em> is homozygous her genotype would be hh and the <em>father</em> is heterozygous so his genotype would be Hh.

The following cross is made to know the genotypes of the children :

hh X Hh--------> Hh Hh hh hh

So the <em>possible genotypes of the children are Hh and hh as shown in the cross. </em>

Note : An image is attached representing the cross in a Punnett square.

  • The probability of an event = No. of favourable outcomes/total no. of outcomes

The probability of occurrence of genotype Hh would be = 2/4 = 1/2

Similarly, the probability of occurrence of genotype hh would be 2/4 = 1/2



3 0
3 years ago
Gravity is a ___________________.
Elanso [62]

Answer:

13.force.

14.a golf ball

15.people in a car move forward in their seats when the car stops quickly.

16.an unbalanced force.

17.A baseball falls at a faster and faster speed.

18.Newton

Explanation:

pls mark as brainliest

4 0
2 years ago
Various protozoa can divide several times, producing several daughter cells, by _____. binary fission; multiple fission; fragmen
Dmitrij [34]
<span>Protozoa mostly divide by the process of binary fission. This is a asexual mode of reproduction. One protozoan cell divides into similar daughter cells. Thus, after several rouds of divison, multiple cells are formed. Some species are also known to divide by multiple asexual divisions.</span>
8 0
4 years ago
Read 2 more answers
Which of the following descriptions of differences between eukaryotes and prokaryotes is NOT CORRECT? Group of answer choices Eu
LiRa [457]

Answer:

Eukaryotic cells typically have circular chromosomes, whereas prokaryotic cells typically have linear chromosomes.

Explanation:

Prokaryotic and Eukaryotic cells are the two kinds of cells that living organisms are composed of. Eukaryotic cells are cells that possess a membrane-bound nucleus while prokaryotic cells do not possess a membrane-bound nucleus. The cell membrane of eukaryotes contain ester-linked phospholipids, whereas that of prokaryotes (bacteria and archeae) have ether-linked or ester-linked phospholipids.

Peptidoglycan is the major constituent of the cell wall of many prokaryotes (bacteria) while peptidoglycan is absent in the cell wall of eukaryotes that possess it. One notable difference between eukaryotic and prokaryotic cells is the SHAPE OF THEIR CHROMOSOME.

- The chromosome in eukaryotic cells is LINEAR while that in prokaryotic cells is CIRCULAR in shape.

4 0
3 years ago
Most of the carbon dioxide is transported by
Viefleur [7K]

Answer:

a. hemoglobin in red blood cells

Explanation:

Carbon dioxide is constantly produced by cells during cellular metabolism (cellular respiration), generating a concentration difference between the interior of the cell and its exterior (intercellular or interstitial space), and a consequent diffusion of this carbon dioxide into the interstitial fluid. Interstitial fluid now has a higher concentration of carbon dioxide than blood plasma, which causes a diffusion into the capillary. Carbon dioxide is carried by hemoglobin or dissolved in plasma.

8 0
3 years ago
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