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ale4655 [162]
4 years ago
13

Explain in your own words why DNA is important?

Biology
1 answer:
Reika [66]4 years ago
5 0
It is genetic information carried from parents to their offsprings. it helps in the organization of the body. it depends on the DNA that how we look and act.
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3. Round shells is incompletely dominant to square shells, the heterozygous combination is a pointed shell. Smelly
matrenka [14]

Answer:

    2/16  rounded not smelly females, RRX+X-

    2/16  pointed not smelly females, RrX+X-

    2/16  rounded smelly females, RRX-X-

    2/16  pointed smelly females, RrX-X-

    2/16  rounded not smelly males, RRX+Y

    2/16  pointed not smelly males, RrX+Y

    2/16  rounded smelly males, RRX-Y

    2/16  pointed smelly males, RrX-Y

Explanation:

<u>Available data</u>:

  • RR round shell
  • rr square shell
  • Rr Pointed shell
  • X+ is dominant and codes for not smelly
  • X- is recessive and codes for Smelly

Cross: A pointed smelly shelled male with a round  heterozygous non-smelly female

Parentals) Rr X-Y    x     RRX+X-

Gametes) RX-, RY, rX-, rY

                RX+, RX+, RX-, RX-

Punnett square)    RX-            rX-           RY           rY

                 RX+    RRX+X-    RrX+X-    RRX+Y    RrX+Y

                 RX+    RRX+X-    RrX+X-    RRX+Y    RrX+Y

                 RX-     RRX-X-     RrX-X-     RRX-Y     RrX-Y

                 RX-     RRX-X-     RrX-X-     RRX-Y     RrX-Y

F1) 2/16 bivalves are expected to be rounded not smelly females, RRX+X-

    2/16 bivalves are expected to be pointed not smelly females, RrX+X-

    2/16 bivalves are expected to be rounded smelly females, RRX-X-

    2/16 bivalves are expected to be pointed smelly females, RrX-X-

    2/16 bivalves are expected to be rounded not smelly males, RRX+Y

    2/16 bivalves are expected to be pointed not smelly males, RrX+Y

    2/16 bivalves are expected to be rounded smelly males, RRX-Y

    2/16 bivalves are expected to be pointed smelly males, RrX-Y

7 0
3 years ago
Rwanda is working with land-grant colleges on which of the following projects?
Cerrena [4.2K]
A)... Teaching sustainable practices.
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How do I harness the power of my brain?
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U think smth duh!!!!!!!!
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Biologists use the system of binomial nomenclature developed by Linnaeus to assign scientific names to known living organisms. W
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Pew pewww 738273 1-7=6
4 0
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19. In bears, black fur is dominant to blonde fur. If a pure blonde bear is crossed with a
Klio2033 [76]

Answer:

use a punnit square        4

Explanation:

   Bl  Bl

b   B     B

b   B     B

4 0
3 years ago
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