حل ورقة عمل Types of Reproduction العلوم المتكاملة الصف السادس
حل ورقة عمل Types of Reproduction العلوم المتكاملة الصف السادس
1) Asexual reproduction involves two parent organisms.
True
False
2)____. Hydra reproduce by
A) budding
B) fission
C) regeneration
D) sexual reproduction
3) Sexual reproduction happens when the ……………..material from two different sex cells combine.
4) In _____, an offspring grows from a piece of its parent.
A) fission
B) budding
C) regeneration
D) sexual reproduction
5) What type of asexual reproduction occurs when a sea star is choppoed up and thrown back into the ocean?
6) What is vegetative reproduction?
7) In sexual reproduction, offspring inherit twice the DNA of each parent.
True
False
8) Which of the following is NOT a disadvantage of asexual reproduction?
A) do not need a mate
B) little genetic variation
C) mutations can occur
D) all susceptible to same disease
9) Explain how organisms produced through sexual reproduction differ from those produced by asexual reproduction. Discuss what the advantages or disadvantages might be for each.
10) A specific form or variation of a gene is called an allele. In roses, one allele is called
“everblooming” (e) because this allele causes plants to bloom at a younger age and for
longer periods than plants found in the wild. Many modern rose breeds have two copies
of the “everblooming” allele, while wild roses have two copies of the dominant “wild”
allele (E).
a. How would you replace the numbers with the correct outcomes in the Punnett square
below to show how two parent rose plants, each with one dominant allele and one
recessive allele for blooming, can produce an offspring plant with the characteristics of
the “everblooming” allele?
b. Compare the offspring from your Punnett square in part (a) to the offspring that result from taking a cutting from one parent rose plant, placing it in the soil, and allowing it to grow roots and produce flowers. Be sure to say what alleles the offspring will have and whether they are “everblooming” or “wild.”
