Asexual Reproduction vs. Sexual Reproduction

Which statement best describes the process of asexual reproduction?

• it involves two parents

• it requires the combination of sperm and egg

• it results in variation in the offspring

• it involves the production of genetic copies

Tags

NGSS.MS-LS3-2

Which statement concerning an organism produced by cloning is correct?

• The clone is genetically identical to the parent

• The clone has the combined genes of both its parents

• The genetic makeup of the clone will be somewhat different from each of its parents

• The appearance of the clone will be entirely different from that of its parents

Tags

NGSS.MS-LS3-2

Farmers may someday clone their best milk-producing cow into a whole herd. What potential disadvantage might be important to consider in having such a large group of clones on one farm?

• It may be difficult to tell the animals apart.

• Lack of variation may limit survival in the herd.

• The cows could be fertilized by only one type of bull.

• The cows could be mated only with each other.

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

The paramecium is a single-celled organism that reproduces asexually. The offspring of a paramecium usually contain

• only half of the genes of the parent cells

• more DNA than the parent cell

• genetic material identical to that of the parent cell

• fewer mutations than the parent cell

Tags

NGSS.MS-LS3-2

A student using a compound microscope to observe a cell saw a number of threadlike nuclear structures resembling those shown below. These threadlike structures are composed primarily of

• fat

• glucose

• DNA

• ATP

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Asexual reproduction differs from sexual reproduction in that, in asexual reproduction

• new organisms are usually genetically identical to the parent

• the reproductive cycle involves the production of gametes

• nuclei of sex cells fuse to form a zygote

• offspring show much genetic variation

Tags

NGSS.MS-LS3-2

When a paramecium, a single-celled organism, is living under stressful conditions, it sometimes switches from asexual to sexual reproduction. The main advantage when this switch occurs is that the paramecium is most likely to

• produce fewer offspring

• increase variation among its offspring

• avoid having to find a mate

• produce clones of itself

Tags

NGSS.MS-LS3-2

Potato farmers in Ireland during the mid 1800s all grew the same type of potato. The potato plants were all produced as clones of one another. When a fungus infected the crop, all of the potatoes were destroyed. This occurred because these potato plants

• had little genetic variability

• had increased biodiversity

• were the product of fertilization

• were the result of biotechnology

Tags

NGSS.MS-LS3-2

The variations that exist in a population of wild giraffes are usually a result of events that occur during

• mitotic division

• genetic engineering

• asexual reproduction

• sexual reproduction

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

The diagram below represents reproduction in a yeast cell. The genes in the bud are identical to the genes in the parent. This type of production of offspring is a form of

• sexual reproduction

• asexual reproduction

• gene manipulation

• genetic engineering

Tags

NGSS.MS-LS3-2